Yamaha P-105B Service Manual page 30

P-105B/P-105WH/P-35B/L-85WH/LP-5AWH
• μPD789022GB-A15-8E (XZ560100) CPU (MKS)
PIN
NAME I/O
NO.
1 P12 I/O
2 P11 I/O
3 P10 I/O
4 P47/KR7 I/O
5 P46/KR6 I/O
6 P45/KR5 I/O
7 P44/KR4 I/O
8 P43/KR3 I/O
9 P42/KR2 I/O
10 P41/KR1 I/O
11 P40/KR0 I/O
12 NC
13 IC Internally connected (N.C.)
14 X2
15 X1 I
16 VSS0 Ground
17 VDD0 Power supply
18 /RESET I System reset
19 P53 I/O
20 P52 I/O
21 P51/TO2 I/O Port 5/16-bit timer output
22 P50/TI0/TO0 I/O Port 5/External count clock input to
23 P32/INTP2/ I/O Port 3/External interrupt input/
CPT2
• WM8524GEDT/R (YC681B00) DAC
PIN
NAME I/O
NO.
1 LINEVOUTL Analogue Out Left line output
2 CPVOUTN Analogue Out Charge Pump
3 CPCB Analogue Out Charge Pump fly back capacitor pin
4 LINEGND Supply
5 CPCA Analogue Out Charge Pump fly back capacitor pin
6 LINEVDD Supply
7 DACDAT Digital In
8 LRCLK Digital In
9 BCLK Digital In
Note: Tri-level pins which require the 'Z' state to be selected should be left floating (open)
30
FUNCTION
Port 1
Port 4/Key return signal detection input
Clock
Port 5
8-bit timer/8-bit timer output
Capture edge input
P-105B/P-105WH
FUNCTION
negative rail decoupling pin
Charge Pump ground
Charge Pump supply
Digital audio interface data input
Digital audio interface
left/right clock
Digital audio interface bit clock
P-105B/P-105WH
PIN
NAME
NO.
24 P31/INTP1
25 P30/INTP0
26 P22/RXD/SI0 I/O Port 2/Asynchronous serial interface serial
27 P21/TXD/SO0 I/O Port 2/Asynchronous serial interface serial
28 P20/ASCK//
SCK0
29 P07
30 P06
31 P05
32 P04
33 P03
34 P02
35 P01
36 P00
37 NC
38 VDD1
39 VSS1
40 P17
41 P16
42 P15
43 P14
44 P13
P-35B
PIN
NAME
NO.
10 MCLK
11 MUTE
12 AIFMODE
13 AGND
14 VMID
15 AVDD
16 LINEVOUTR
I/O FUNCTION
I/O
Port 3/External interrupt input
I/O
data input/Serial interface serial data input
data output/Serial interface serial data output
I/O Port 2/Asynchronous serial interface serial
clock input/Serial interface serial clock
I/O
I/O
I/O
I/O
Port 0
I/O
I/O
I/O
I/O
Power supply
Ground
I/O
I/O
I/O Port 1
I/O
I/O
DM: IC23 [P-105B/P-105WH], IC301 [P-35B]
I/O FUNCTION
Digital In Master clock
Digital In 0 = Mute enabled
1 = Mute disabled
Digital In 0 = 24-bit Left Justified
2
Tri-level 1 = 24-bit I S
Z = 24-bit Right Justified
Supply Analogue ground
Analogue Out Analogue midrail decoupling pin
Supply Analogue supply
Analogue Out Right line output
DM: IC7