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SB16C1058_Data Sheet_EN

ManualsBrandsSystemBase ManualsElectronic ComponentsOctal UART with 256 Byte TX/RX FIFO, 80-pin TQFP - 60pcs Bundle
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SB16C1058
OCTAL UART WITH 256-BYTE FIFO
JULY 2013 REV 1.04
12
Table 2: Pin Description…continued
Multiport I/O Interfaces
Name
Pin
Type
Description
IDASY0
IDASY1
34
33
I
I
Daisy Chain Input [1:0].
These pins are used only in MIO mode.
SystemBase’s MIO Bus can be expanded up to 32 serial ports by 8 ports.
The ports are managed with Daisy Chain in order for 8 ports’ install
information to be automatically recognized. These pins are the input of
Daisy Chain.
ODASY0
ODASY1
66
65
O
O
Daisy Chain Output [1:0].
These pins are used only in MIO mode.
SystemBase’s MIO Bus can be expanded up to 32 serial ports by 8 ports.
The ports are managed with Daisy Chain in order for 8 ports’ install
information to be automatically recognized. These pins are the output of
Daisy Chain.
PNEN0#_OSC0
PNEN1#_OSC1
63
62
I/O
These pin are dual mode pins. After power is supplied to the chip,
the pin is set to input mode for a while and receive OSC[1:0] input.
After that, the pins are set to output mode and outputs PNEN#[1:0]
values. The pins are only used in MIO mode.
In input mode, OSC[1:0] values mean
OSC[1:0] = 00b : Use 1.8432MHz UART Clock.
OSC[1:0] = 01b : Use 3.6864MHz UART Clock.
OSC[1:0] = 10b : Use 7.3728MHz UART Clock.
OSC[1:0] = 11b : Use 14.7456MHz UART Clock.
In output mode, nPNEN[1:0] values mean
PNEN#[3:0] = 1111b : No serial port on MIO Bus.
PNEN#[3:0] = 1110b : This UART is 1
st
UART on MIO Bus.
PNEN#[3:0] = 1101b : This UART is 2
nd
UART on MIO Bus.
PNEN#[3:0] = 1011b : This UART is 3
rd
UART on MIO Bus
PNEN#[3:0] = 0111b : This UART is 4
th
UART on MIO Bus
PNEN2#_INTF0
PNEN3#_INTF1
61
60
I/O
These pin are dual mode pins. After power is supplied to the chip,
the pin is set to input mode for a while and receive INTF[1:0] input.
After that, the pins are set to output mode and outputs PNEN#[3:2]
values. The pins are only used in MIO mode.
In input mode, OSC[1:0] values mean
INTF[1:0] = 00b : Use RS232 Interface
INTF[1:0] = 01b : Use RS422 Interface
INTF[1:0] = 10b : Use RS485 Interface
INTF[1:0] = 11b : Use Unknown Interface
In output mode, nPNEN[1:0] values mean
PNEN#[3:0] = 1111b : No serial port on MIO Bus.
PNEN#[3:0] = 1110b : This UART is 1
st
UART on MIO Bus.
PNEN#[3:0] = 1101b : This UART is 2
nd
UART on MIO Bus.
PNEN#[3:0] = 1011b : This UART is 3
rd
UART on MIO Bus
PNEN#[3:0] = 0111b : This UART is 4
th
UART on MIO Bus