Marantz CD5003/B, Service Manual

Page: 36 / 56

44
IC21 : T5CD2
Pin
No.
Port Name I/O Use Power
off
Name
Port Setting
Note
Act. init
51 P07/AD7 I/O O L SRAM_ADD07 - I sram_address_07
52 P10/AD8/A8 I/O I I CD_BUS2 - I receive data from CD DSP
53 P11/AD9/A9 I/O O L CD_BUS3 - I send command to CD DSP
54 P12/AD10/A10 I/O O L CD_BUCK - I communication clock with CD DSP
55 P13/AD11/A11 I/O O L CD_CCE L I communication chip enable with CD DSP
56 P14/AD12/A12 I/O O L DSP_RESET L I CD DSP reset
57 P15/AD13/A13 I/O O L MT_STBY H I motor stanby
58 P16/AD14/A14 I/O O L CD_CLOSE_M H I cd close motor
59 P17/AD15/A15 I/O O L CD_OPEN_M H I cd open motor
60 P20/A0/A16 I/O NC open
61 P21/A1/A17 I/O I I CD_OPEN_SW - I cd open switch
62 DVSS DVSS GND
63 /NMI /NMI external interrupt, connect with +5V
64 DVCC DVCC MCU power, connect with +5V
65 P22/A2/A18 I/O I I CD_CLOSE_SW - I cd close switch
66 P23/A3/A19 I/O NC open
67 P24/A4/A20 I/O I I CD_LIMIT_SW - I cd inner switch
68 P25/A5/A21 I/O O L VFD_POWER H I vfd blink control
69 P26/A6/A22 I/O O H F_MUTE H I preout mute control
70 P27/A7/A23 I/O O L DISPLAY_P L I FIP display on/off control
71 PZ0/RD I/O O L DAC_RESET L H DAC reset
72 PZ1/WR I/O O L NC open
73 PZ2/HWR I/O O L DAC_CLK - I DAC clock
74 PZ3/R/W I/O O L DAC_DATA - I DAC data
75 P30/TB3IN0/INT3/SDA0 I/O O L TRANS_ON/OFF H I trans change control
76 P31/TB3IN1/INT4/SCL0 I/O O L MP3_LED_P H I MP3 LED control
77 P32/WAIT/TB3OUT0 I/O O L WMA_LED_P H I WMA LED control
78 P33/TB3OUT1 I/O NC open
79 PB0/TB4IN0/INT9/SDA1 I/O O L PLL_SDA_ - I Pitch data Control
80 PB1/TB4IN1/INT10/
SCL1
I/O O L PLL_SCL - I Pitch clock Control
81 PB2/TB4OUT0 I/O O L PLL_PLL L I Pitch chip enable Control
82 PB3/TB4OUT1 I/O O L PLL_EX_SEL - I PLL Ex Select Pin
83 DVCC DVCC MCU power, connect with +5V
84 DVSS DVSS GND
85 P50/AN0 I/O I I KEY0 - I key1 input
86 P51/AN1 I/O I I KEY1 - I key2 input
87 P52/AN2 I/O I I KEY2 - I key3 input
88 P53/AN3 I/O NC open
89 P54/AN4 I/O NC open
90 P55/AN5 I/O NC open
91 P56/AN6 I/O NC open
92 P57/AN7 I/O NC open
93 P60/AN8 I/O O L SRAM_ADD08 - I sram_address_08
94 P61/AN9 I/O O L SRAM_ADD09 - I sram_address_09
95 P62/AN10 I/O O L SRAM_ADD10 - I sram_address_10
96 P63/AN11 I/O O L SRAM_ADD11 - I sram_address_11
97 P64/AN12 I/O O L SRAM_ADD12 - I sram_address_12
98 P65/AN13 I/O O L SRAM_ADD13 - I sram_address_13
99 P66/AN14 I/O O L SRAM_ADD14 - I sram_address_14
100 P67/AN15 I/O NC open