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| HD6432345 Datasheet, PDF (26/907 Pages) Hitachi Semiconductor – H8S/2345 F-ZTAT Hardware Manual | |||
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1.2 Block Diagram
Figure 1.1 shows an internal block diagram of the H8S/2345 Series.
MD2
MD1
MD0
EXTAL
XTAL
STBY
RES
WDTOVF (FWE)*1
NMI
PF7/ ø
PF6/ AS
PF5/ RD
PF4/ HWR
Port
PF3/ LWR/ IRQ3
F
PF2/ WAIT/ IRQ2
PF1/ BACK/ IRQ1
PF0/ BREQ/ IRQ0
PG4/ CS0
PG3/ CS1
PG2/ CS2
Port
G
PG1/ CS3/ IRQ7
PG0/ ADTRG/ IRQ6
Port D
Port E
H8S/2000 CPU
Interrupt controller
ROM*2
DTC
RAM
TPU
WDT
8-bit timer
SCI
D/A converter
A/D converter
PA3/ A19
Port
PA2/ A18
A
PA1/ A17
PA0/ A16
PB7/ A15
PB6/ A14
PB5/ A13
Port
PB4/ A12
B
PB3 / A11
PB2/ A10
PB1/ A9
PB0/ A8
PC7/ A7
PC6/ A6
PC5/ A5
Port
PC4/ A4
C
PC3/ A3
PC2/ A2
PC1/ A1
PC0/ A0
P35/ SCK1/IRQ5
P34/ SCK0/IRQ4
Port
P33/ RxD1
3
P32/ RxD0
P31/ TxD1
P30/ TxD0
Port 1
Port 2
Port 4
Notes: 1. Functions as WDTOVF pin on ZTAT, mask ROM, and ROMless versions.
Functions as FWE pin on F-ZTAT version, not as WDTOVF pin.
2. Not present on ROMless version.
Figure 1.1 Block Diagram
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