Alarm Signal Input / Output - NEC UPD98413 User Manual

2.2.8 Alarm Signal Input / Output

Pin Name Serial No.
RALMC0-3
RALMB0-3
RALMA0-3
TALMC 0-3
TALMB 0-3
TALMA 0-3
CHAPTER 2 PIN FUNCTION
Address No. I/O Level
O
LVTTL
I
LVTTL
PRELIMINARY
Function
Alarm signal output.
These pins output a signal indicating that an internally
monitored error state has been detected. The pins can
output an error either singly or in combination. The type of
the error to be indicated is selected by setting the internal
RALMR registers.
Alarm signal input
The alarm, which it is possible to insertion, is LAIS, PAIS,
LRDI, PRDI, PERDI (Payload defect, Server defect,
Connectivity defect) and the following code corresponds to
TALMCx-TALMAx
000: No Alarm
001: LAIS
010: PAIS
011: LRDI
100: One-bit PRDI mode - PRDI (one-bit PRDI, G1 bit5 : 1)
Enhanced PRDI mode - PERDI Server defect (G1 bit5-
7 : 101)
101: PERDI Connectivity defect (G1 bit5-7 : 110)
110: PERDI Payload defect (G1 bit5-7 : 010)
111: Reserved
TALMx 0 corresponds to PORT0, while TALMx 3
corresponds to PORT3.
NEC confidential and Proprietary
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