Motorola MVME5100 用户手册
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1
Z8536 CIO Port Pins
The assignment for the Port pins of the Z8536 CIO is as follows::
Table 1-20. Z8536 CIO Port Pins Assignment
Port
Pin
Signal Name
Direction
Descriptions
PA0
TM3_MID0
Input
Port 3 Test Mode when IDREQ_ = 1;
Module ID Bit 0 when IDREQ_ = 0.
PA1
DSR3_MID1
Input
Port 3 Data Set Ready when IDREQ_ = 1;
Module ID Bit 1 when IDREQ_ = 0.
PA2
RI3_
Input
Port 3 Ring Indicator
PA3
LLB3_MODSEL
Output
Port 3 Local Loopback (IDREQ_ = 1) or
Port Select (IDREQ_ = 0):
IDREQ_ = 0 & MODSEL = 0 => Port 3 ID Select
IDREQ_ = 0 & MODSEL = 1 => Port 4 ID Select
PA4
RLB3_
Output
Port 3 Remote Loopback
PA5
DTR3_
Output
Port 3 Data Terminal Ready
PA6
BRDFAIL
Output
Board Fail: When set will cause FAIL LED to be
lit.
lit.
PA7
IDREQ_
Output
Module ID Request - low true
PB0
TM4_MID2
Input
Port 4 Test Mode when IDREQ_ = 1;
Module ID Bit 2 when IDREQ_ = 0.
PB1
DSR4_MID3
Input
Port 4 Data Set Ready when IDREQ_ = 1;
Module ID Bit 3 when IDREQ_ = 0.
PB2
RI4_
Input
Port 4 Ring Indicator
PB3
LLB4_
Output
Port 4 Local Loopback
PB4
RLB4_
Output
Port 4 Remote Loopback
PB5
DTR4_
Output
Port 4 Data Terminal Ready
PB6
FUSE
Input
FUSE = 1 means that at least one of the fuses or
polyswitches is open.
polyswitches is open.