Panasonic KX-W1500

5.2.4 Gate Array Pin Function
The Gate Array Pin Functions are shown in the following chart.
(a) CPU Gate Array (IC19)
NAME FUNCTION
N.C Not Connected
RST Reset |
TRACKOO | TRACKOO of FDD
RES Reset
RW/SEEK | Select RW/SEEK of FDC
WR Write
FLCS FDC Chip Select
AO Address Bus
DO Data Bus
Di Data Bus
FLT Signal-RW/SEEK=0
FLT/TRKO i
TRKO Signal-RW/SEEK=1
D2 “a Data Bus xe
D3 Data Bus |
Iba Data Bus - |
DS _ | Data Bus - :
D6 _ : Data Bus —
D7 Data Bus :
SYNC Ground
INT | interrupt from FDC
DREQ | Not Connected
| ouTO FDD Motor ON ia
OUT1 Hammer Solenoid
OUT2 Not Connected
OUT3 Not Connected
XTAL Not Connected
MRDY Not Connected
iRQT Interrupt Request 1
7 Hz 7 Hz.
STBY Not Connected |
RES RESET of System
XT 1.75 MHz Input
GND Ground
|
a 4
|
|
to
|
he) a /ff/off/o ff}oj}/ ad} a ffo fja —
+ HO 1} © fF] © JT N ff OJ] O17} & ff] © Jip oO N ort & |} Of} po fp
2
23
RIS
nN
© NO HM If De}
3
31
32
oO
fo)
format me2)
:
an
& || B
ay oO oO
:
a
—
oO xe)
50 |---| ROMCS3___| MASK ROM Chip Select
Dp Ql o
|
HPAL
Oo Le)
PPR YT A - -
— OO] RI a N
Se) ©
|
o a
|
ise] oa
Ww |} &
34
33
NAME FUNCTION
Vcc +5V
TEST +5V : -
EPCS EPROM Chip Select
EA18 Expansion Address ~~
A10 Address Bus < o
AL 1 Address Bus ia
Al2 Address Bus
Ai3 Address Bus 7
EA14 Expansion Address Bus
EA15 Expansion Address Bus
EA16 Expansion Address Bus
EA17 Expansion Address Bus
Al Address Bus
DRCSC MASK ROM Chip Select ;
ROMCS2 | Not Connected
ROMGS1 | NotConnected
‘ROMCSO | Not Connected |
“EXCS Not Connected |
RAMCS4 | DRAM Chip Select —s_|
RAMCS3__| Not Connected 4
RAMCS2__ | Not Connected
RAMCS1 | Not Connected
RAMCSO__| SRAM Chip Select
INCS Not Connected
ae Output PORT Select of
KBCS
Keyboard
| RAMCSS VRAM, ARAM Chip Select
ELCS CRTC Chip Select
A15 Address Bus
A14 Address Bus |
E System Clock
.|NC
Not Connected