Yamaha HTR-5920 Service Manual page 21

IC81: TMP87PS71AF (FRONT P.C.B.)
Microprocessor
PORT ASSIGNMENT
No.
PORT NAME
1 P10 REMOTE_IN
2 P11 RDS_CLK
3 P12 RDS_DATA
4 P13 PLL_CE
5 P14 EXP/PLL_CLK
6 P15 EXP/PLL_DATA
7 P16 N.C
8 P17 N.C
9 TEST GND
10 P21 EVOL_CE
11 P22 EVOL_CLK
12 RESET RESET
13 XIN X-IN
14 XOUT X-OUT
15 VSS GND
16 P20 BACK_UP
17 P30 EVOL_DATA
18 P31 N.C
19 P32 DSP_RST
20 P33 DSP_INTREQ
21 P34 DSP_DIN
22 P35 DSP/CODEC_CLK
23 P36 DSP_CS
24 P37 DSP/CODEC_DATA
25 P00 CODEC_CS
26 P01 CODEC_RESET
27 P02 PLL_DIN
28 P03 POWER_ON
29 P04 EXP_CLK2
30 P05 EXP_DATA2
31 P06 EXP_CE2
32 P07 FUN_MUTE
33 VDD VDD
34 to 54 SEG 1 to SEG 21
55 to 65 GRID 11 to GRID 1
66 VKK VKK
67 P40 OPTION
68 P41 H/PHONE_IN
69 P42 TUNED
70 P43 STEREO
71 P44 VOL_UP
72 P45 VOL_DOWN
73 P46 LEVEL_IN
74 P47 PROTECT_IN
75 P50 PROTECT_IN
76 P51 KEY_IN3
77 P52 KEY_IN1
78 P53 KEY_IN2
79 P54 N.C
80 P55 EXP_CE1
I/O
DESCRIPTION
INPUT
INPUT
INPUT
OUTPUT
OUTPUT
OUTPUT
-
-
-
OUTPUT
OUTPUT
INPUT
INPUT
OUTPUT
-
INPUT
OUTPUT
-
OUTPUT
INPUT
INPUT
OUTPUT
OUTPUT
OUTPUT
OUTPUT
OUTPUT
INPUT
OUTPUT
OUTPUT
OUTPUT
OUTPUT
OUTPUT
-
OUTPUT
OUTPUT
-
INPUT
INPUT
INPUT
INPUT
INPUT
INPUT
INPUT
INPUT
INPUT
INPUT
INPUT
INPUT
-
OUTPUT
ACTIVE
SERIAL DATA REMOTE DATA INPUT
SERIAL DATA
SERIAL DATA
SERIAL DATA
SERIAL DATA PLL CLOCK & CD4094 CLOCK 1
SERIAL DATA PLL DATA & CD4094 DATA 1
-
-
-
SERIAL DATA NJW1153 (E VOL+FUNCTION SELECT)
SERIAL DATA NJW1153 (E VOL+FUNCTION SELECT)
-
- OSC FREQUENCY = 8 MHz
- OSC FREQUENCY = 8 MHz
-
LOW CPU ENABLE PORT
SERIAL DATA NJW1153 (E VOL+FUNCTION SELECT)
-
SERIAL DATA
SERIAL DATA DSP: CS493264 , TR INVERT and 1k PULL_UP
SERIAL DATA DSP: CS493264 , TR INVERT and 1k PULL_UP
SERIAL DATA
SERIAL DATA
SERIAL DATA
SERIAL DATA
SERIAL DATA
SERIAL DATA
HIGH
SERIAL DATA CD4094 CLOCK 2
SERIAL DATA CD4094 DATA 2
SERIAL DATA CD4094 CHIP ENABLE 2
LOW
-
SERIAL DATA VFD = 11-BT-230GNK
SERIAL DATA VFD = 11-BT-230GNK
- VFD = 11-BT-230GNK
-
LOW EXTERNAL +5V PULL_UP
LOW
LOW
EXTERNAL +5V PULL_UP
EXTERNAL +5V PULL_UP
HIGH
LOW
EXTERNAL +5V PULL_UP
EXTERNAL +5V PULL_UP
EXTERNAL +5V PULL_UP
SERIAL DATA CD4094 CHIP ENABLE 1
HTR-5920
REMARKS
21