Integra DTR-7.6 Service Manual page 88

IC BLOCK DIAGRAMS AND DESCRIPTIONS(XM radio only)
TPS2012AD/MAX1930ESA(POWER-DISTRIBUTION)
1 8
1 EN
GND
OUT
2 IN 7
2,3 IN
OUT
3 IN 6
4 GND
OUT
4 EN 5
5~8 OUT
OUT
M30281FAHP(XM MICROPROCESSOR)
1 P91
2 P90
3 CNVSS
4 P87
5 P86
6 RESET
7 XOUT
CRYSTAL
8 VSS
OSC.
9 XIN
20MHz
10 VCC
M30281FAHP
11 P85
12 P84
13 P83
14 P82
15 P81
16 P80
No. PIN NAME I/O
3 Cnvss Connect to Vcc.
5 FW_CE I Port for writing flash.
6 ~RESET I Reset input
7 Xout Connect to the crystal oscillator.
8 Vss Ground for power supply
9 Xin Connect to the crystal oscillator.
10 Vcc Power supply Vcc
20 MHREQ I Request signal to transfer the serial data from main microprocessor. (System)
21 MSREQ O Request signal to transfer the serial data to main microprocessor. (Local)
22 MCLK I Serial clock input from main microprocessor.
23 MSDI I Serial data input from main microprocessor.
24 MSDO O Serial data output to main microprocessor.
25 FW_TXD O Port for writing flash.
26 FW_RXD I Port for writing flash.
27 FW_SCLK I Port for writing flash.
28 FW_BUSY O Port for writing flash.
29 DACSDO O Serial data output for DAC.
30 DACRESET O Reset output for DAC.
31 DACCS O Serial communication chip select for DAC.
32 DACCLK O Serial communication clock for DAC.
33 XMSDO O Serial data output for XM IC.
34 XMSDI I Serial data input for XM IC.
43 XM_COM_SEL O Command select output for XM IC.
44 XM_RESET O Reset output for XM IC.
45 XM_ERR_IRQ I Error interrupt request line for XM IC.
46 FW_P16 I Port for writing flash.
48 XM_PWR_CTRL O Power supply control for XM IC.
59 AVSS Ground for A/D converter.
61 Vref Reference power supply for A/D converter.
62 AVcc Power supply for A/D converter.
Enable input. Logic low turns power switch on.
Input voltage
Ground
Power switch output
48
P03 XM_PWR_CTRL
47
P15
46
P16
45
P17 XM_ERR_IRQ
44
XM_RESET
P20
43
P21 XM_COM_SEL
42
P22
Q7001
41
P23
40
P24
39
P25
38
P26
37
P27
36
P60
35
P61
34
XMSDI_L
P62
33
P63 XMSDO_L
DESCRIPTION
DTR-7.6