Panasonic JS-170FR Series, Service Manual

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2.1.18 GATEARRAY (
µ
PD65884GM-019-BED) (Refer to the page 4-8)
Functions of the GATEARRAY (
µ
PD65884GM-019-BED) are described below.
For more details in regard to the internal circuits, refer to the instruction manual for the GATEARRAY separately furnished.
2.1.18.1 Internal functions
The major functions provided inside the GATEARRAY are as specified below.
• Address decoder for COM3 and COM4
• Address decoder for POST LED
• Control circuit for cash drawer
• Clock frequency divider circuit
• FDD gate signal control circuit
• Customer Display control circuit
• POS individual control circuit
• LCD timing control circuit
• Power supply control circuit
2.1.18.2 GATEARRAY Pin Assignment
Pin No. Signal name IN/OUT Functions Common
2 WGATE_INN IN FDD WE (Write Enable)# signal input pin. (Super I/O) FDD
156 SA0
157 SA1
3
|
16
SA2
|
SA15
IN Address bus conforming to the ISA Specifications. Common
17 BATEN_IN IN Battery backup enable input pin. Active : High AC Detect
18 TMR_SET1 IN Battery backup time setting 1. Bvack-up Timer
19 TMR_SET0 IN Battery backup time setting 2.
22 O322_D7 OUT Output port 0322h bit7 output pin. Connected to TMR_SET1.
23 O322_D6 OUT Output port 0322h bit6 output pin. Connected to TMR_SET0.
24 O322_D5 OUT Output port 0322h bit5 output pin. (Not used)
25 O322_D4 OUT Output port 0322h bit4 output pin.
26 O322_D3 OUT Output port 0322h bit3 output pin.
27 O322_D2 OUT Output port 0322h bit2 output pin. (Not used)
28 O322_D2N OUT Reversed output pin of output port 0322h bit2.
29 O322_D0 OUT Output port 0322h bit0 output pin.
I/O 0322h
30 IN32D_D4 IN
Battery connection identification input pin.
High: Not connected, Low: Connected.
I/O 032Dh
31 IN321_D7 IN Battery level input pin.
32 IN321_D6 IN Battery level input pin.
33 IN321_D5 IN Battery level input pin.
IN 0321h
34 POWR_OFF OUT Secondary side power OFF control output. Active : High Back-Reset
35 SW_ON_IN IN Secondary side power control signal input pin. Active : High
36 FLAGCLRN IN AC power OFF detect. Flag clear input. Active : Low
37 BATT_ON OUT Battery backup ON output. Active : High
38 PWRINTN OUT Power OFF interrupt output. Active : Low
39 AC_ON-IN IN AC power detect input pin. Active : High
AC Detect
43 PORTEN IN Hard enabled pin for POS exclusive port (0320h
~
032Fh).
Active : Low
PORT CNT
44 IN32D_D5 IN Input port 032Dh bit5 input pin. IN 032Dh