HD64F36034 datasheet(184/592 Pages) RENESAS

184 / 592 page

Section 11 Timer V

Rev. 4.00 Mar. 15, 2006 Page 152 of 556

REJ09B0026-0400

11.3.2

Time Constant Registers A and B (TCORA, TCORB)

TCORA and TCORB have the same function.

TCORA and TCORB are 8-bit read/write registers.

TCORA and TCNTV are compared at all times. When the TCORA and TCNTV contents match,

CMFA is set to 1 in TCSRV. If CMIEA is also set to 1 in TCRV0, a CPU interrupt is requested.

Note that they must not be compared during the T3 state of a TCORA write cycle.

Timer output from the TMOV pin can be controlled by the identifying signal (compare match A)

and the settings of bits OS3 to OS0 in TCSRV.

TCORA and TCORB are initialized to H'FF.

11.3.3

Timer Control Register V0 (TCRV0)

TCRV0 selects the input clock signals of TCNTV, specifies the clearing conditions of TCNTV,

and controls each interrupt request.

Bit

Bit Name

Initial

Value

R/W

Description

CMIEB

R/W

Compare Match Interrupt Enable B

When this bit is set to 1, interrupt request from the CMFB

bit in TCSRV is enabled.

CMIEA

R/W

Compare Match Interrupt Enable A

When this bit is set to 1, interrupt request from the CMFA

bit in TCSRV is enabled.

OVIE

R/W

Timer Overflow Interrupt Enable

When this bit is set to 1, interrupt request from the OVF

bit in TCSRV is enabled.

CCLR1

CCLR0

R/W

Counter Clear 1 and 0

These bits specify the clearing conditions of TCNTV.

00: Clearing is disabled

01: Cleared by compare match A

10: Cleared by compare match B

11: Cleared on the rising edge of the TMRIV pin. The

operation of TCNTV after clearing depends on TRGE

in TCRV1.

HD64F36034 Datasheet(PDF) 184 Page - Renesas Technology Corp

HD64F36034 Datasheet(HTML) 184 Page - Renesas Technology Corp

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL