HD6433713 datasheet(172/324 Pages) RENESAS

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Bits 2 to 0: Clock select (TME2 to TME0)

Bits 2 to 0 select the clock input to TCE.

Bit 2

Bit 1

Bit 0

TME2

TME1

TME0

Description

Internal clock:

φ/8192.

(initial value)

Internal clock:

φ/4096.

Internal clock:

φ/2048.

Internal clock:

φ/512.

Internal clock:

φ/256.

Internal clock:

φ/128.

Internal clock:

φ/32.

Internal clock:

φ/8.

Timer counter E (TCE)

TCE is an 8-bit read-only up-counter, which is incremented by internal clock input. The clock

source for input to this counter is selected by bits TME2 to TME0 in timer mode register E

(TME). The TCE value can be read by the CPU at any time.

When TCE overflows from H'FF to H'00 or to the value set in TLE, the IRRTE bit in interrupt

request register 2 (IRR2) is set to 1.

TCE is allocated to the same address as timer load register E (TLE).

Upon reset, TCE is initialized to H'00.

Bit

Initial value

Read/Write

TCE7

TCE6

TCE5

TCE4

TCE3

TCE0

TCE2

TCE1

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HD6433713 Datasheet(PDF) 172 Page - Renesas Technology Corp

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