Yamaha CD-S300 Service Manual page 28

CD-S300
IC305: R5F212CASNFP (MAIN P.C.B.)
Single chip 16-bit microprocessor
I/O ports
Peripheral functions
Timer RA (8 bits x 1)
Timer RB (8 bits x 1)
Timer RC (16 bits x 1)
Timer RD (16 bits x 2)
Timer RE (8 bits x 1)
Timer RF (16 bits x 1)
Watchdog timer
A/D converter
(10 bits x 20 channels)
D/A converter
(8 bits x 2)
D33_Detect
DRV_MUTE
LED_POWER
LED_PDIRECT
LED_/USB1
LED_/USB2
SLED_CTL
VCC/AVCC
28
8 8
Port P0 Port P1 Port P2
UART or
clock synchronous serial I/O
(8 bits x 3)
Timers
2
I C bus or SSU
(8 bits x 1)
LIN module
(15 bits)
R8C/Tiny Series microprocessor core
R0H R0L
R1H R1L
R2
R3
A0
A1
FB
61
OPU_SEL 62
63
LIMIT_SW 64
MON_1 65
MON_2 66
N.C. 67
N.C. 68
N.C. 69
70
71
72
73
N.C. 74
VSS/AVSS 75
76
VREF 77
78
STBY 79
EEP_SCL 80
8 8 3 2 8
Port P3 Port P4 Port P5
System clock
generation circuit
XIN-XOUT
High-speed on-chip oscillator
Low-speed on-chip oscillator
XCIN-XCOUT
Memory
SB (1)
ROM
USP
ISP
(2)
RAM
INTB
PC
FLG
Multiplier
IC305
R5F212CASNFP
NOTES:
1. ROM size varies with MCU type.
2. RAM size varies with MCU type.
40 CL_UP
39 CL_DOWN
38 OPEN
37 CLOSE
36 RIN2
35 DOUT2
34 USB_TX
33 USB_RX
32 USB_/RST
31 C2_Flag
30 CANCEL
29 USB_IN
28 iPod_IF
27 HSW_/EN
26 HSW_/FLG
25 USB_PCON
24 TBL_POS
23 UPSW
22 DOWNSW
21 OPSW