Serial RapidIO (SRIO) User's Guide

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5.96 Port Control Independent Register n (SP n_CTL_INDEP)
SRIO Registers
Each of the four ports is supported by a register of this type (see Table 182 ). The port control independent
register n (SP n_CTL_INDEP) is shown in Figure 159 and described in Table 183 .
Table 182. SP n_CTL_INDEP Registers and the Associated Ports
Register Address Offset Associated Port
SP0_CTL_INDEP 14004h Port 0
SP1_CTL_INDEP 14104h Port 1
SP2_CTL_INDEP 14204h Port 2
SP3_CTL_INDEP 14304h Port 3
Figure 159. Port Control Independent Register n (SP n_CTL_INDEP)
31 30 29 28 27 26 25 24
Reserved TX_FLW SOFT_REC Reserved FORCE_REINIT TRANS_MODE
R-0 R/W-0 R/W-0 R-0 W-0 R/W-01
23 22 21 20 19 18 17 16
SEND_DBG_ ILL_TRANS_ ILL_TRANS_ MAX_RETRY_ MAX_RETRY_
DEBUG Reserved
PKT EN ERR EN ERR
R/W-0 R/W-0 R/W-0 R/W-0 R-0 R/W-0 R/W-0
15 8
MAX_RETRY_THR
R/W-00h
7 6 5 0
IRQ_EN IRQ_ERR Reserved
R/W-0 R/W-0 R-0
LEGEND: R/W = Read/Write; R = Read only; - n = Value after reset
Table 183. Port Control Independent Register n (SP n_CTL_INDEP) Field Descriptions
Bit Field Value Description
31 Reserved 0 This read-only bit returns 0 when read.
30 TX_FLW Transmit Link Flow Control enable
0 Disables transmit flow control (Enables receive link flow control)
1 Reserved
29 SOFT_REC Software controlled error recovery
0 Transmission of error recovery sequence is performed by the hardware
1 Transmission of error recovery sequence is performed by the software. By
default the transmission error recovery sequence is performed by the hardware.
If this bit is set, the hardware recovery is disabled and the hardware
transmission logic must wait until software has written the register Port n Local
ackID Status CSR.
28–27 Reserved 0 These read-only bits return 0s when read.
26 FORCE_REINIT Force reinitialization process. In 4x mode this bit affects all 4 lanes. This bit is
write only, and reads always return 0.
25–24 TRANS_MODE Describes the transfer mode for each port.
00b Reserved (Cut-Through Mode)
01b Store & Forward Mode
1xb Reserved
236 Serial RapidIO (SRIO) SPRUE13A – September 2006
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