KX-PX1CX - Panasonic Copying Equipment Service Manual (repair manual). Page 19

19

183

B12 PP[05] 

/

TOUT [1]/
GATE [1]

Timer ch.1 OUTput / 
timer ch.1 GATE / 
GPIO 5

Common terminal for the timer 
ch.1 terminal and the general-
purpose input and output port 
(GPIO)

HEAD Clock 
Out

For HEAD Clock Genara-
tor
For generating the head 
transfer clock

out

268

C12 PP[06] 

/

RXD [0]

uart ch.0 Receive 
Data / GPIO 6

Common terminal for the 
received data on UART ch.0 and 
the general-purpose input and 
output port (GPIO)

CL11

Not used

in

345

D12 PP[07] 

/

TXD [0]

uart ch.0 Transmit 
Data / GPIO 7

Common terminal for the trans-
mitted data on UART ch.0 and 
the general-purpose input and 
output port (GPIO)

CL12

Not used

out

414

E12 PP[08] 

/

CTS#[0]

uart ch.0 Clear To 
Send / GPIO 8

Common terminal for the CTS 
signal on UART ch.0 and the gen-
eral-purpose input and output 
port (GPIO)

N.C. 10k 
Pull_UP

Not used

in

91

A11 PP[09] 

/

RTS#[0]

uart ch.0 Request To 
Send / GPIO 9

Common terminal for the RTS 
signal on UART ch.0 and the gen-
eral-purpose input and output 
port (GPIO)

Not use 10k 
Pull_UP

Not used

out

184

B11 PP[10] 

/

RXD [1]

uart ch.1 Receive 
Data / GPIO 10

Common terminal for the 
received data on UART ch.1 and 
the general-purpose input and 
output port (GPIO)

RXD_78K 
P13_TXD6

Serial IF (RX) Serial IF 
(Mechanical CPU IC8)

in

269

C11 PP[11]/

TXD [1] 

uart ch.1 Transmit 
Data / GPIO 11

Common terminal for the trans-
mitted data on UART ch.1 and 
the general-purpose input and 
output port (GPIO)

TXD_78K 
P14_RXD6

Serial IF (TX) Serial IF 
(Mechanical CPU IC8)

out

92

A10 PP[12]/

DREQ#[0] 

Dmac ch.0 
REQuest/ GPIO 12

Common terminal for the trans-
mission request on DMAC ch.0 
and the general-purpose input 
and output port (GPIO)

LED4 PRINT 
(green)

Not used

in

94

A8 PP[13]/

DACK#[0] 

Dmac ch.0 
ACKnowledge/ 
GPIO 13

Common terminal for the trans-
mission acknowledge on DMAC 
ch.0 and the general-purpose 
input and output port (GPIO)

FLPWRON 
10k P-DOWN

ROM(IC5)Program install 
ROM initialization

in

416

E10 PP[14]/

DONE#[0]/
DREQ#[4 

Dmac ch.0 transfer 
DONE/Dmac ch.4 
transfer REQuest/ 
GPIO 14

Common terminal for the end of 
transmission signal on DMAC 
ch.0, the transmission request on 
DMAC ch.4, and the general-pur-
pose input and output port 
(GPIO)

FR_IREQ# 
P30/INTP1

Interrupt output 
Interruption output

out

185

B10 PP[15]/

DREQ#[1] 

Dmac ch.1 transfer 
REQuest/ GPIO 15

Common terminal for the trans-
mission request on DMAC ch.1 
and the general-purpose input 
and output port (GPIO)

VBUS_F_DC
T# FR_ 
*IREQ5/*CS5

USB_F Vbus Detect 
USB_F Vbus detection

in

187

B8 PP[16]/

DACK#[1] 

Dmac ch.1 
ACKnowledge/ 
GPIO 16

Common terminal for the trans-
mission acknowledge on DMAC 
ch.1 and the general-purpose 
input and output port (GPIO)

USB_F_ENB# 
(Vbus pull-up)

Not used

out

93

A9 PP[17]/

DONE#[1]/
DREQ#[5] 

Dmac ch.1 transfer 
DONE/ Dmac ch.5 
transfer REQuest/ 
GPIO 17

Common terminal for the end of 
transmission signal on DMAC 
ch.1, the transmission request on 
DMAC ch.5 and the general-pur-
pose input and output port 
(GPIO)

FGSEN_FRV 
78k_P00,P12
0

Paper Sheet Motor rota-
tion detector signal input 
PS motor rotation detec-
tion

in

270

C10 PP[18]/

DREQ#[2] 

Dmac ch.2 transfer 
REQuest/ GPIO 18

Common terminal for the trans-
mission request on DMAC ch.2 
and the general-purpose input 
and output port (GPIO)

MDDSEN_FR
V 78k_P21

Mode Change Motor rota-
tion detector signal input
MODE motor rotation 
detection

in

347

D10 PP[19]/

DREQ#[3] 

Dmac ch.3 transfer 
REQuest / GPIO 19

Common terminal for the trans-
mission request on DMAC ch.3 
and the general-purpose input 
and output port (GPIO)

ICE_RST#

The mechanical CPU 
(IC5) Reset IC5 reset

out

pin 

No.

pin

assign

ment

Name of 
the CPU 

terminal

VDE

VDD

Signal name 

of the CPU 

(IC3) on the 

main board

Purpose of the signal

I/O