upd70208h Renesas Electronics Corporation., upd70208h Datasheet - Page 30

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

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9. TCU (TIMER/COUNTER UNIT)
subset of the PD71054.
9.1
9.2
IORD IOWR Note 1
Notes 1. A0 or A1 (Set by a system I/O area register)
The TCU incorporates 3 counters, and can be used as a timer, event counter, rate generator, etc. Functionally it is a
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3
Six programmable count modes
Binary/BCD count
Multiple latch command
Choice of two input clocks: internal/external
TCU INTERNAL BLOCK DIAGRAM
FEATURES
Read/Write Control
16-bit counters
Register)
2. A1 or A2 (Set by a system I/O area register)
(Mode
TMD
Note 2
TCU
Selection
Signal
TCT #0
Status
Register
(External)
Status
Latch
(8)
(8)
TCLK
Internal Data Bus
Data Sheet U13225EJ4V0DS00
Prescaler
CLOCK
SW
H(8) L(8)
Down Counter (16)
Register
Count
(16)
(8)
Control Logic
H(8) L(8)
TCTL0=High
Count
Latch
(16)
(8)
TOUT0 (To INTL0)
SW
TCT #1
TCTL1=High
PD70208H, 70216H
TOUT1 (External) TCTL2 (External)
To INTL2/SCU
SW
TCT #2
TOUT2 (External)