Internal Block Diagram - Hitachi H8S/2646 Hardware Manual

1.2

Internal Block Diagram

Figures 1-1 (1) and 1-1 (2) show internal block diagrams.
MD2
MD1
MD0
OSC2
OSC1
EXTAL
XTAL
PLLCAP
PLLVSS
STBY
RES
NMI
*2
FWE
HTxD
HRxD
PF7/ø
PF6/AS/SEG20
PF5/RD/SEG19
PF4/HWR/SEG18
PF3/LWR/ADTRG/IRQ3
PF2/WAIT/SEG17
PF0/IRQ2
P52
P51
P50
P20/TIOCA3
P21/TIOCB3
P22/TIOCC3
P23/TIOCD3
P24/TIOCA4
P25/TIOCB4
P26/TIOCA5
P27/TIOCB5
PK7
PK6
Notes: *1 Flash memory version only.
*2 The FWE pin is for compatibility with the flash memory version.
Figure 1-1 (1) H8S/2646, H8S/2646R, and H8S/2645 Internal Block Diagram
6
PLL
Interrupt controller
PC break controller
ROM
(mask ROM,
flash memory
RAM
TPU
PPG
Port 1 Port H
Port D Port E
H8S/2600 CPU
DTC
*1
)
WDT × 2 channel
HCAN
SCI × 2 channel
LCDC
Motor control PWM timer
A/D converter
Port J
PA7/A23/SEG24
PA6/A22/SEG23
PA5/A21/SEG22
PA4/A20/SEG21
PA3/A19/COM4
PA2/A18/COM3
PA1/A17/COM2
PA0/A16/COM1
PB7/A15/SEG16
PB6/A14/SEG15
PB5/A13/SEG14
PB4/A12/SEG13
PB3 / A11/SEG12
PB2/A10/SEG11
PB1/A9/SEG10
PB0/A8/SEG9
PC7/A7/SEG8
PC6/A6/SEG7
PC5/A5/SEG6
PC4/A4/SEG5
PC3/A3/SEG4
PC2/A2/SEG3
PC1/A1/SEG2
PC0/A0/SEG1
P37
P36
P35/SCK1/IRQ5
P34/RxD1
P33/TxD1
P32/SCK0/IRQ4
P31/RxD0
P30/TxD0
P97
P96
P95
P94
P93/AN11
P92/AN10
P91/AN9
Port 4
P90/AN8