Read Sharp CD-XP700H (serv.man15) Service Manual online
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CD-XP700H
IC5 RH-iX0542AW00: MP3 Microcomputer (IX0542AW)
1-8
P60/ANI0-P67ANI7
Port6. Analog input.
9
AVSS
Analog ground.
10,11
P10, P11
Port1
12
P30/INTP0/TI81/CPT90
Port3. Interrupt from peripherals. Timer input. Capture trigger input.
13
P31/INTP1/TO81
Port3. Interrupt from peripherals. Timer output.
14
P32/INTP2/TO90
Port3. Interrupt from peripherals. Timer output.
15
P33/INTP3/TO82/BZO90
Port3. Interrupt from peripherals. Timer output. Buzzer output.
16
P20/SCK20/ASCK20
Port2. Serial clock. Asynchronous serial input.
17
VDD1
Power supply.
18
P21/SO20/TXD20
Port2. Serial output.Transmit data.
19
P22/SI20/RXD20
Port2. Serial input. Receive data.
20*,21
P23, P24
Port2
22
IC0 (VPP)
Internally connected. Programming power supply.
23,24
XT2, XT1
Cryatal (Subsystem clock)
25
RESET
Reset
26,27
X2, X1
Cryatal (Main system clock)
28
VSS0
Ground
29
VDD0
Power supply.
30
P25/TI80/SS20
Port2. Timer input. Chip select input.
31*
P26/TO80
Port2. Timer Output.
32*-34*
P00-P02
Port0
35
P03
Port0
36*
P04
Port0
37
VSS1
Ground
38*
P05
Port0
39*-42*
P50-P53
Port5
43
AVDD
Analog power supply.
44
AVREF
Analog reference voltage.
Terminal Name
Pin No.
Function
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
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
33
34
35
36
37
38
39
40
41
42
43
44
P60/ANI0
P61/ANI1
P62/ANI2
P63/ANI3
P64/ANI4
P65/ANI5
P66/ANI6
P67/ANI7
AVSS
P10
P11
P30/INTP0/TI81/CPY90
P31/INTP1/TO81
P32/INTP2/TO90
P33/INTP3/TO82/BZO90
P20/SCK20/ASCK20
VDD1
P21/SO20/TXD20
P22/SI20/RXD20
P23
P24
IC0 (VPP)
AVREF
AVDD
P53
P52
P51
P50
P05
VSS1
P04
P03
P02
P01
P00
P26/TO80
P25/TI80/SS20
VDD0
VSS0
X1
X2
RESET
XT1
XT2
Figure 49 BLOCK DIAGRAM OF IC
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