Gatearray (Μpd65884Gm-019-Bed) (Refer To The; 2.1.18.1 Internal Functions; 2.1.18.2 Gatearray Pin Assignment - Panasonic JS-170FR Series Service Manual

2.1.18 GATEARRAY (µPD65884GM-019-BED) (Refer to the page 4-8)
Functions of the GATEARRAY (µPD65884GM-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
2 WGATE_INN
156 SA0
157 SA1
3 SA2
| |
16 SA15
17 BATEN_IN
18 TMR_SET1
19 TMR_SET0
22 O322_D7
23 O322_D6
24 O322_D5
25 O322_D4
26 O322_D3
27 O322_D2
28 O322_D2N
29 O322_D0
30 IN32D_D4
31 IN321_D7
32 IN321_D6
33 IN321_D5
34 POWR_OFF
35 SW_ON_IN
36 FLAGCLRN
37 BATT_ON
38 PWRINTN
39 AC_ON-IN
43 PORTEN
44 IN32D_D5
IN/OUT
IN FDD WE (Write Enable)# signal input pin.
IN Address bus conforming to the ISA Specifications.
IN Battery backup enable input pin.
IN Battery backup time setting 1.
IN Battery backup time setting 2.
OUT Output port 0322h bit7 output pin. Connected to TMR_SET1.
OUT Output port 0322h bit6 output pin. Connected to TMR_SET0.
OUT Output port 0322h bit5 output pin. (Not used)
OUT Output port 0322h bit4 output pin.
OUT Output port 0322h bit3 output pin.
OUT Output port 0322h bit2 output pin. (Not used)
OUT Reversed output pin of output port 0322h bit2.
OUT Output port 0322h bit0 output pin.
Battery connection identification input pin.
IN
High: Not connected, Low: Connected.
IN Battery level input pin.
IN Battery level input pin.
IN Battery level input pin.
OUT Secondary side power OFF control output.
IN Secondary side power control signal input pin.
IN AC power OFF detect. Flag clear input.
OUT Battery backup ON output.
OUT Power OFF interrupt output.
IN AC power detect input pin.
IN Hard enabled pin for POS exclusive port (0320h ~ 032Fh).
IN Input port 032Dh bit5 input pin.
2-51
Functions
(Super I/O)
Active : High
Active : High
Active : High
Active : Low
Active : High
Active : Low
Active : High
Active : Low
Common
FDD
Common
AC Detect
Bvack-up Timer
I/O 0322h
I/O 032Dh
IN 0321h
Back-Reset
AC Detect
PORT CNT
IN 032Dh