M16CSLASH26 datasheet(103/239 Pages) RENESAS

103 / 239 page

Renesas Technology Corp.

Three-Phase Motor Control Timer Function

M16C/26 Group

SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER

Under

development

Preliminary Specifications Rev. 0.9

Specifications in this manual are tentative and subject to change.

Figure 1.14.4. Registers related to timers for three-phase motor control (4)

Note 2: Related pins are P80, P81, P72, P73, P74, and P75, regardless of function

assigned.

Symbol

Address

When reset

TA11

034316,034216

Indeterminate

TA21

034516,034416

Indeterminate

TA41

034716,034616

Indeterminate

b0 b7

(b15)

(b8)

Counts an internal count source

000016 to FFFF16

Function

Values that can be set

Timer Ai-1 (i=1, 2, 4) register (Notes 1, 2)

Note 1: Read and write data in 16-bit units.

Note 2: Do not write to these registers synchronously with a timer B2 underflow.

Symbol

Address

When reset

TA1

038916,038816

Indeterminate

TA2

038B16,038A16

Indeterminate

TA4

038F16,038E16

Indeterminate

(b15)

(b8)

· Timer mode

000016 to FFFF16

Counts an internal count source

Function

Values that can be set

· One-shot timer mode

000016 to FFFF16

Counts a one shot width

(Note 2, 3)

Timer Ai (i=1, 2, 4) register (Notes 1, 4)

Note 1: Read and write data in 16-bit units.

Note 2: When the timer Ai register is set to "000016", the counter does not operate

and a timer Ai interrupt does not occur.

Note 3: Use MOV instruction to write to this register.

Note 4: Do not write to these registers synchronously with a timer B2 underflow.

PWCOM

Symbol

Address

When reset

TB2SC

039E16

XXXXXX002

Timer B2 reload timing

switching bit

0 : Next underflow

1 : Synchronized rising edge of

triangular wave

Timer B2 special mode register

Bit name

Function

Bit symbol

Nothing is assigned.

When write, set 0 . When read, its content is 0 .

IVPCR1

Three phase output port

SD control bit 1

0 : SD pin input port Hi-z disabled

1 : SD pin input port Hi-z enabled

(Note 1,2,3)

Note 1: Set the protect register (address 000A16) to "1" before writing to this register.

Note 3: Select P85 as input port prior to setting IVPCR1 to "1".

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