Service manual

53
YSP-500/HTY-750
YSP-500/HTY-750
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
P96
P95
P94
P93
P92
P91
P90
P146
P145
P144
P143
P142
P141
P140
P87
P86
P85
P84
P83
P82
P81
P80
P77
P76
P75
INT8
INT7
INT6
NMI
INT2
INT1
INT0
TB4IN
TB3IN
TB2IN
TB1IN
TB0IN
TA4IN/U/
RTP23
TA4OUT/
U
TA3IN/
RTP22
TA3OUT
TA2IN/W/
RTP21
TxD5
I/O
O
O
TMR-IN
Tx
Rx
TMR-IN
INT-IN
INT-IN
INT-IN
I
O
O
–
–
O
O
–
–
–
–
–
I
INT-IN
INT-IN
INT-IN
I
O
TMR-
OUT
O
When in single chip mode: VSS (GND)
Processor mode selection: Lo: single chip mode
Hi: To boot mode with Flash included
To boot mode with P50=H, P55=L, CNVss=H when
resetting hardware
RESET
20MHz OUT
GND
20MHz IN
Power supply +3.3V
Connect to Vcc via resistor
INT TI/INTTI
INT DIR
RS232C RX interrupt for communication
For FL filament (78.4KHz/PWM)
*Pull-down required
[L: RESET]
Connect to 40 pin
INPC15/
OUTC15
INPC13/
OUTC13/
ISTxD0
Timer
terminal
UART
terminal
Analog
terminal
I/O Detail of function
Intelligent
I/O terminal
Control
terminal
No.
Port
name
Interrupt
terminal
BYTE
CNVSS
XCIN
XCOUT
RESET
XOUT
VSS
XIN
VCC1