Marantz CD5003/B, Руководство по обслуживанию

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43
IC21 : T5CD2
Pin
No.
Port Name I/O Use Power
off
Name
Port Setting
Note
Act. init
1 VREFH VREFH ADC power, connect with +5V
2 AVSS GND GND
3 AVCC AVCC MCU power, connect with +5V
4 P70/TA0IN I/O O L /SRAM_WE L I sram write enable
5 P71/TA1OUT I/O O L /SRAM_OE L I sram output enable
6 P72/TA3OUT I/O O L /SRAM_CE L I sram chip enable
7 P73/TA4IN I/O NC open
8 P74/TA5OUT I/O NC open
9 P75/INT0 I/O I - RS/REMOTE - I remote in
10 P80/TB0IN0/INT5 I/O I/O L SRAM_DATA00 - I sram_data_00
11 P81/TB0IN1/INT6 I/O I/O L SRAM_DATA01 - I sram_data_01
12 P82/TB0OUT0 I/O I/O L SRAM_DATA02 - I sram_data_02
13 P83/TB0OUT1 I/O I/O L SRAM_DATA03 - I sram_data_03
14 P84/TB1IN0/INT7 I/O I/O L SRAM_DATA04 - I sram_data_04
15 P85/TB1IN1/INT8 I/O I/O L SRAM_DATA05 - I sram_data_05
16 P86/TB1OUT0 I/O I/O L SRAM_DATA06 - I sram_data_06
17 P87/TB1OUT1 I/O I/O L SRAM_DATA07 - I sram_data_07
18 P90/TXD0 I/O O L VFD_DATA - vfd data
19 P91/RXD0 I/O O L VFD_CS L vfd chip select
20 P92/SCLK0/CTS0 I/O O L VFD_CLK L I vfd clock
21 P93/TXD1 I/O O L UPDATE_TXD - I used when connect with update tool
22 P94/RXD1 I/O I I UPDATE_RXD - I used when connect with update tool
23 P95/SCLK1/CTS1 I/O NC - I open
24 AM0 AM0 chip operate select, connect with +5V
25 DVCC DVCC MCU power, connect with +5V
26 X2 X2 oscillator(20MHz)
27 DVSS DVSS GND
28 X1 X1 oscillator(20MHz)
29 AM1 AM1 chip operate select, connect with +5V
30 /RESET /RESET MCU reset
31 P96/XT1 I/O NC open
32 P97/XT2 I/O NC open
33 /BOOT/EMU0 BOOT update mode select
34 EMU1 I/O NC open
35 PA0/TB2IN0/INT1 I/O I - RS/REMOTE - I remote in
36 PA1/TB2IN1/INT2 I/O NC open
37 PA2/TB2OUT0 I/O O H BUSOUT - I bus out
38 PA3/TB2OUT1 I/O I - SYSTEM_DETECT - I system detect
39 P40/CS0/SCOUT I/O O - RS_ON/OFF - I remote signal kill control
40 P41/CS1/TXD2 I/O O L CTRL H I Unit power control
41 P42/CS2/RXD2 I/O O H LED L stanby LED control
42 P43/CS3/SCLK2/CTS2 I/O NC open
43 P44/ALE I/O NC open
44 P00/AD0 I/O O L SRAM_ADD00 - I sram_address_00
45 P01/AD1 I/O O L SRAM_ADD01 - I sram_address_01
46 P02/AD2 I/O O L SRAM_ADD02 - I sram_address_02
47 P03/AD3 I/O O L SRAM_ADD03 - I sram_address_03
48 P04/AD4 I/O O L SRAM_ADD04 - I sram_address_04
49 P05/AD5 I/O O L SRAM_ADD05 - I sram_address_05
50 P06/AD6 I/O O L SRAM_ADD06 - I sram_address_06