HD6435348R Hitachi Semiconductor, HD6435348R Datasheet - Page 117

• Manufacturer Part Number: HD6435348R
• Description: Single-Chip Microcomputer
• Manufacturer: Hitachi Semiconductor

5.1.2 Block Diagram
Figure 5-1 shows the block configuration of the interrupt controller.
Interrupt
request
signals
from
modules
NMI
IRQ /interval timer
IRQ
IRQ /IRQ
IRQ /IRQ
FRT1
FRT2
FRT3
8 bit timer
SCI
A/D converter
FRT:
SCI:
SR:
IPRA to IPRF:
DTEA to DTEF:
0
1
2
4
16 Bits Free Running Timer
Serial Communication Interface
Status Register
3
5
Figure 5-1 Interrupt Controller Block Diagram
Interrupt Priority Register
Data Transfer Enable Register
98
Interrupt controller
I
2
I
1
I
0
SR (CPU)
NMI
request
Interrupt
request
DTC
request