upd70208h Renesas Electronics Corporation., upd70208h Datasheet - Page 32

• Manufacturer Part Number: upd70208h
• Description: V40hltm, V50hltm 16/8, 16-bit Microprocessor
• Manufacturer: Renesas Electronics Corporation.

ICU Selection Signal
32
11. ICU (INTERRUPT CONTROL UNIT)
V50HL, and transfers one of them to the CPU. The ICU functions comprise the functions of the V40HL and V50HL minus
those functions not required by the V40HL and V50HL.
11.1 FEATURES
11.2 ICU INTERNAL BLOCK DIAGRAM
The ICU arbitrates among up to 8 interrupt requests (maskable interrupts) generated inside and outside the V40HL and
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Notes 1. A0 or A1 (Set by a system I/O area register)
8 interrupt inputs
Edge- or level-triggered request input
(input from internally connected TCU is edge-triggered only)
Interrupt requests individually maskable
Programmable interrupt request priority order
Polling operation capability
Note 1
Note 2
IOWR
PD71059 cascading possible
IORD
2. A1 or A2 (Set by a system I/O area register)
Read/Write
Control
Interrupt
In-Service
Register
Internal Data Bus
Initialize &
Command Word
Register Group
(IIS)
Data Sheet U13225EJ4V0DS00
Control Logic
Priority
Determina-
tion Logic
Interrupt
Mask
Register
(IMK)
Slave Control
Interrupt
Request
Register
(IRQ)
INTL0
INTL1
INTL2
INTL3
INTL4
INTL5
INTL6
INTL7
SW
SW
SA0
SA1
SA2
INTAK (From CPU)
INT (To CPU)
PD70208H, 70216H
TOUT0 (From TCU)
To BIU
SINT (From SCU)
TOUT1 (From TCU)
INTP1
INTP2
INTP3
INTP4
INTP5
INTP6
INTP7
External Pins
A8
A9
A10