Alarm Insertion / Detection Pins; Alarm Insertion Pins; Alarm Detection Pins - NEC UPD98413 User Manual

4.7 Alarm Insertion / Detection Pins

The µPD98413 has Alarm Insertion and Alarm Detection Pins.

4.7.1 Alarm Insertion Pins

These are input pins, which input the state signals from external peripheral devices. Each port has 3 pins, and
alarm is inserted in the code form. Those input pins inputs synchronization with MCLK.
Signal Name
TALMA 0-3
TALMB 0-3
TALMC 0-3

4.7.2 Alarm Detection Pins

Each port has 3 pins. 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 errors to be indicated are selected by
using the RALMR register. If an event occurs, the corresponding alarm pin goes high.
Signal Name
RALMA 0-3
RALMB 0-3
RALMC 0-3
CHAPTER 4 INTERFACES
I/O
Alarm signal input.
I
The alarm, which it is possible to insertion, is LAIS, PAIS, LRDI, PRDI,
PERDI (Server defect, Connectivity defect, Payload 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.
Example:
TALMA 0 = 1, TALMB 0 = 0, TALMC 0 = 0, then the LAIS alarm is
transmitted to port 0.
I/O
Alarm signal output.
O
The errors to be indicated are selected by using the RALMR register.
RALMx 0 corresponds to PORT0, while RALMx 3 corresponds to
PORT3.
PRELIMINARY
Function
Function
NEC confidential and Proprietary
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