Yamaha DVD-S1700B Service Manual Page 21

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DVD-S1700
21
DVD-S1700
ST72F321R
TOP VIEW
Device Block Diagram
8-BIT CORE
ALU
ADDRESS AND DATA BUS
OSC1
V
PP
CONTROL
PROGRAM
(16K - 60K Bytes)
V
DD
RESET
PORT F
PF7:0
(8-bits)
TIMER A
BEEP
PORT A
RAM
(512 - 2048 Bytes)
PORT C
10-BIT ADC
V
AREF
V
SSA
PORT B
PB7:0
(8-bits)
PWM ART
PORT E
PE7:0
(8-bits)
SCI
TIMER B
PA7:0
(8-bits)
PORT D
PD7:0
(8-bits)
SPI
PC7:0
(8-bits)
V
SS
WATCHDOG
TLI
OSC
LVD
OSC2
MEMORY
MCC/RTC/BEEP
EVD
AVD
I2C
AIN4 / PD4
AIN5 / PD5
AIN6 / PD6
AIN7 / PD7
V
AREF
V
SSA
V
DD
_3
V
SS
_3
MCO / AIN8 / PF0
BEEP / (HS) PF1
(HS) PF2
OCMP2_A / AIN9 / PF3
OCMP1_A / AIN10 / PF4
ICAP2_A / AIN11 / PF5
ICAP1_A / (HS) PF6
EXTCLK_A / (HS) PF7
(HS) PE4
(HS) PE5
(HS) PE6
(HS) PE7
PWM3 / PB0
PWM2 / PB1
PWM1 / PB2
PWM0 /PB3
ARTCLK /(HS) PB4
ARTIC1 / PB5
ARTIC2 / PB6
PB7
AIN0 / PD0
AIN1 / PD1
AIN2 / PD2
AIN3 / PD3
V
SS
_1
V
DD
_1
PA3 (HS)
PA2
PA1
PA0
PC7 / SS / AIN15
PC6 / SCK / ICCCLK
PC5 / MOSI / AIN14
PC4 / MISO / ICCDATA
PC3 (HS) / ICAP1_B
PC2 (HS) / ICAP2_B
PC1 / OCMP1_B / AIN13
PC0 / OCMP2_B / AIN12
V
SS
_
0
V
DD
_
0
PE3
PE2
PE1 / RDI
PE0 / TDO
V
DD
_2
OSC1
OSC2
V
SS
_2
TLI
EVD
RESET
V
PP
/ ICCSEL
PA7 (HS) / SCLI
PA6 (HS) / SDAI
PA5 (HS)
PA4 (HS)
ei2
ei0
ei3
ei1
IC41: ST72F321R (MAIN P.C.B.)
Microprocessor
* No replacement part available.
サービス部品供給なし
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