User Guide
Table Of Contents
- Table of Contents
- Preface
- 1 Overview
- 2 SRIO Functional Description
- 3 Logical/Transport Error Handling and Logging
- 4 Interrupt Conditions
- 5 SRIO Registers
- 5.1 Introduction
- 5.2 Peripheral Identification Register (PID)
- 5.3 Peripheral Control Register (PCR)
- 5.4 Peripheral Settings Control Register (PER_SET_CNTL)
- 5.5 Peripheral Global Enable Register (GBL_EN)
- 5.6 Peripheral Global Enable Status Register (GBL_EN_STAT)
- 5.7 Block n Enable Register (BLKn_EN)
- 5.8 Block n Enable Status Register (BLKn_EN_STAT)
- 5.9 RapidIO DEVICEID1 Register (DEVICEID_REG1)
- 5.10 RapidIO DEVICEID2 Register (DEVICEID_REG2)
- 5.11 Packet Forwarding Register n for 16b DeviceIDs (PF_16B_CNTLn)
- 5.12 Packet Forwarding Register n for 8b DeviceIDs (PF_8B_CNTLn)
- 5.13 SERDES Receive Channel Configuration Registers n (SERDES_CFGRXn_CNTL)
- 5.14 SERDES Transmit Channel Configuration Registers n (SERDES_CFGTXn_CNTL)
- 5.15 SERDES Macro Configuration Register n (SERDES_CFGn_CNTL)
- 5.16 DOORBELLn Interrupt Status Register (DOORBELLn_ICSR)
- 5.17 DOORBELLn Interrupt Clear Register (DOORBELLn_ICCR)
- 5.18 RX CPPI Interrupt Status Register (RX_CPPI_ICSR)
- 5.19 RX CPPI Interrupt Clear Register (RX_CPPI_ICCR)
- 5.20 TX CPPI Interrupt Status Register (TX_CPPI_ICSR)
- 5.21 TX CPPI Interrupt Clear Register (TX_CPPI_ICCR)
- 5.22 LSU Status Interrupt Register (LSU_ICSR)
- 5.23 LSU Clear Interrupt Register (LSU _ICCR)
- 5.24 Error, Reset, and Special Event Status Interrupt Register (ERR_RST_EVNT_ICSR)
- 5.25 Error, Reset, and Special Event Clear Interrupt Register (ERR_RST_EVNT_ICCR)
- 5.26 DOORBELLn Interrupt Condition Routing Register (DOORBELLn_ICRR)
- 5.27 DOORBELLn Interrupt Condition Routing Register 2 (DOORBELLn_ICRR2)
- 5.28 RX CPPI Interrupt Condition Routing Register (RX_CPPI _ICRR)
- 5.29 RX CPPI Interrupt Condition Routing Register (RX_CPPI _ICRR2)
- 5.30 TX CPPI Interrupt Condition Routing Register (TX_CPPI _ICRR)
- 5.31 TX CPPI Interrupt Condition Routing Register (TX_CPPI _ICRR2)
- 5.32 LSU Module Interrupt Condition Routing Register 0 (LSU_ICRR0)
- 5.33 LSU Module Interrupt Condition Routing Register 1 (LSU_ICRR1)
- 5.34 LSU Module Interrupt Condition Routing Register 2 (LSU_ICRR2)
- 5.35 LSU Module Interrupt Condition Routing Register 3 (LSU_ICRR3)
- 5.36 Error, Reset, and Special Event Interrupt Condition Routing Register (ERR_RST_EVNT_ICRR)
- 5.37 Error, Reset, and Special Event Interrupt Condition Routing Register 2 (ERR_RST_EVNT_ICRR2)
- 5.38 Error, Reset, and Special Event Interrupt Condition Routing Register 3 (ERR_RST_EVNT_ICRR3)
- 5.39 INTDSTn Interrupt Status Decode Registers (INTDSTn_DECODE)
- 5.40 INTDSTn Interrupt Rate Control Registers (INTDSTn_RATE_CNTL)
- 5.41 LSUn Control Register 0 (LSUn_REG0)
- 5.42 LSUn Control Register 1 (LSUn_REG1)
- 5.43 LSUn Control Register 2 (LSUn_REG2)
- 5.44 LSUn Control Register 3 (LSUn_REG3)
- 5.45 LSUn Control Register 4 (LSUn_REG4)
- 5.46 LSUn Control Register 5 (LSUn_REG5)
- 5.47 LSUn Control Register 6 (LSUn_REG6)
- 5.48 LSU Congestion Control Flow Mask n (LSU_FLOW_MASKS n)
- 5.49 Queue Transmit DMA Head Descriptor Pointer Registers (QUEUEn_TXDMA_HDP)
- 5.50 Queue Transmit DMA Completion Pointer Registers (QUEUEn_TXDMA_CP)
- 5.51 Queue Receive DMA Head Descriptor Pointer Registers (QUEUEn_RXDMA_HDP)
- 5.52 Queue Receive DMA Completion Pointer Registers (QUEUEn_RXDMA_CP)
- 5.53 Transmit Queue Teardown Register (TX_QUEUE_TEAR_DOWN)
- 5.54 Transmit CPPI Supported Flow Mask Registers n (TX_CPPI_FLOW_MASKSn)
- 5.55 Receive Queue Teardown Register (RX_QUEUE_TEAR_DOWN)
- 5.56 Receive CPPI Control Register (RX_CPPI_CNTL)
- 5.57 Transmit CPPI Weighted Round Robin Control Register 0 (TX_QUEUE_CNTL0)
- 5.58 Transmit CPPI Weighted Round Robin Control Register 1 (TX_QUEUE_CNTL1)
- 5.59 Transmit CPPI Weighted Round Robin Control Register 2 (TX_QUEUE_CNTL2)
- 5.60 Transmit CPPI Weighted Round Robin Control Register 3 (TX_QUEUE_CNTL3)
- 5.61 Mailbox-to-Queue Mapping Register Ln (RXU_MAP_Ln)
- 5.62 Mailbox-to-Queue Mapping Register Hn (RXU_MAP_Hn)
- 5.63 Flow Control Table Entry Registers (FLOW_CNTLn)
- 5.64 Device Identity CAR (DEV_ID)
- 5.65 Device Information CAR (DEV_INFO)
- 5.66 Assembly Identity CAR (ASBLY_ID)
- 5.67 Assembly Information CAR (ASBLY_INFO)
- 5.68 Processing Element Features CAR (PE_FEAT)
- 5.69 Source Operations CAR (SRC_OP)
- 5.70 Destination Operations CAR (DEST_OP)
- 5.71 Processing Element Logical Layer Control CSR (PE_LL_CTL)
- 5.72 Local Configuration Space Base Address 0 CSR (LCL_CFG_HBAR)
- 5.73 Local Configuration Space Base Address 1 CSR (LCL_CFG_BAR)
- 5.74 Base Device ID CSR (BASE_ID)
- 5.75 Host Base Device ID Lock CSR (HOST_BASE_ID_LOCK)
- 5.76 Component Tag CSR (COMP_TAG)
- 5.77 1x/4x LP_Serial Port Maintenance Block Header Register (SP_MB_HEAD)
- 5.78 Port Link Time-Out Control CSR (SP_LT_CTL)
- 5.79 Port Response Time-Out Control CSR (SP_RT_CTL)
- 5.80 Port General Control CSR (SP_GEN_CTL)
- 5.81 Port Link Maintenance Request CSR n (SPn_LM_REQ)
- 5.82 Port Link Maintenance Response CSR n (SPn_LM_RESP)
- 5.83 Port Local AckID Status CSR n (SPn_ACKID_STAT)
- 5.84 Port Error and Status CSR n (SPn_ERR_STAT)
- 5.85 Port Control CSR n (SPn_CTL)
- 5.86 Error Reporting Block Header (ERR_RPT_BH)
- 5.87 Logical/Transport Layer Error Detect CSR (ERR_DET)
- 5.88 Logical/Transport Layer Error Enable CSR (ERR_EN)
- 5.89 Logical/Transport Layer High Address Capture CSR (H_ADDR_CAPT)
- 5.90 Logical/Transport Layer Address Capture CSR (ADDR_CAPT)
- 5.91 Logical/Transport Layer Device ID Capture CSR (ID_CAPT)
- 5.92 Logical/Transport Layer Control Capture CSR (CTRL_CAPT)
- 5.93 Port-Write Target Device ID CSR (PW_TGT_ID)
- 5.94 Port Error Detect CSR n (SPn_ERR_DET)
- 5.95 Port Error Rate Enable CSR n (SPn_RATE_EN)
- 5.96 Port n Attributes Error Capture CSR 0 (SPn_ERR_ATTR_CAPT_DBG0)
- 5.97 Port n Packet/Control Symbol Error Capture CSR 1 (SPn_ERR_CAPT_DBG1)
- 5.98 Port n Packet/Control Symbol Error Capture CSR 2 (SPn_ERR_CAPT_DBG2)
- 5.99 Port n Packet/Control Symbol Error Capture CSR 3 (SPn_ERR_CAPT_DBG3)
- 5.100 Port n Packet/Control Symbol Error Capture CSR 4 (SPn_ERR_CAPT_DBG4)
- 5.101 Port Error Rate CSR n (SPn_ERR_RATE)
- 5.102 Port Error Rate Threshold CSR n (SPn_ERR_THRESH)
- 5.103 Port IP Discovery Timer in 4x mode (SP_IP_DISCOVERY_TIMER)
- 5.104 Port IP Mode CSR (SP_IP_MODE)
- 5.105 Serial Port IP Prescalar (IP_PRESCAL)
- 5.106 Port-Write-In Capture CSR n (SP_IP_PW_IN_CAPTn)
- 5.107 Port Reset Option CSR n (SPn_RST_OPT)
- 5.108 Port Control Independent Register n (SPn_CTL_INDEP)
- 5.109 Port Silence Timer n (SPn_SILENCE_TIMER)
- 5.110 Port Multicast-Event Control Symbol Request Register n (SPn_MULT_EVNT_CS)
- 5.111 Port Control Symbol Transmit n (SPn_CS_TX)
www.ti.com
double-word n-1
acklD rsv
prio
tt ftype
destID
sourcelD
address
rsrv
xamsbs double-word 0
double-word 1
...
double-word n-2
CRC
PHY
LOG
TRA
LOG
TRA
PHY
5
3
2
2
4
8
8
29
1
2
64 64
(n-4)*64
64
64
16
16
n*64+32
16
4
2
10
LOG
PHY
10
TRA
2 4
9 * 6 4 + 32
LOG
TRA
16
PHY
16
double-word 0
5
acklD sourcelDrsv
3
prio
2
ftype
tt
2 4
destiD
8
1
rsrv
address
8 29
xamsbs
2
64
double-word 8
double-word 1
64
5*64
...
64
double-word 9
64
CRC
16
LOG
(n-9)*64
16
PHY
double-word 10
64
double-word n-2double-word 11
64
(n-13)*64
...
double-word n-1
6464
16
CRC
n*64+96
n*64+80
PHY = Physical layer
TRA = Transport layer
LOG = Logical layer
SC or PD parameter1stype0 stype1Parameter0 cmd CRC
533553
Delimiter 1st Byte 2nd Byte 3rd Byte
8
SRIO Functional Description
Figure 6. 1x/4x RapidIO Packet Data Stream (Streaming-Write Class)
Note: Figure 6 assumes that addresses are 32-bit and device IDs are 8-bit.
The device ID, being an 8-bit field, will address up to 256 nodes in the system. If 16-bit addresses were
used, the system could accommodate up to 64k nodes.
The data stream includes a Cyclic Redundancy Code (CRC) field to ensure the data was correctly
received. The CRC value protects the entire packet except the ackID and one bit of the reserved PHY
field. The peripheral checks the CRC automatically in hardware. If the CRC is correct, a Packet-Accepted
control symbol is sent by the receiving device. If the CRC is incorrect, a Packet-Not-Accepted control
symbol is sent so that transmission may be retried.
2.1.2.3 Control Symbols
Control symbols are physical layer message elements used to manage link maintenance, packet
delimiting, packet acknowledgment, error reporting, and error recovery. All transmitted data packets are
delimited by start-of-packet and end-of-packet delimiters. SRIO control symbols are 24 bits long and are
protected by their own CRC. Control symbols provide two functions: stype0 symbols convey the status of
the port transmitting the symbol, and stype1 symbols are requests to the receiving port or transmission
delimiters. They have the following format, which is detailed in section 3 of the RapidIO LP-Serial
specification.
Figure 7. Serial RapidIO Control Symbol Format
Control symbols are delimited by special characters at the beginning of the symbol. If the control symbol
contains a packet delimiter(start-of-packet, end-of-packet, etc.), the special character PD (K28.3) is used.
If the control symbol does not contain a packet delimiter, the special character SC (K28.0) is used. This
use of special characters provides an early warning of the contents of the control symbol. The CRC does
not protect the special characters, but an illegal or invalid character is recognized and flagged as
Packet-Not-Accepted. Since control symbols are known length, they do not need end delimiters.
22 Serial RapidIO (SRIO) SPRU976 – March 2006
Submit Documentation Feedback