M66011FP 查看數據表（PDF） - MITSUBISHI ELECTRIC

零件编号

产品描述 (功能)

比赛名单

M66011FP

SERIAL BUS CONTROLLER

MITSUBISHI ELECTRIC  

MITSUBISHI 〈DIGITAL ASSP〉

M66011FP

2. Read operation

When a read access arrives, M66011 outputs data in par-

allel to data bus. The data output at this moment may be

serial input data, or data on internal status resister.

When a read access arrives when the address setting is

(A1, A0) = (1, 0), 8-bits of 9-bit serial input data, excluding

SERIAL BUS CONTROLLER

the acknowledge bit, is output to data bus While RD is “L”.

When a read access arrives when the address setting is

(A1, A0) =(1, 1), interrupt control register, busy flag, serial-

input acknowledge bit and clock dividing ratio register are

output to data bus while RD is “L”.

Read Operation Basic Function

CS A1 A0 RD WR

0

1

0

0

1

0

1

1

0

1

Date bus

Data bus

Functions

← Serial input shift register

← Status register

Read Output Data Details

(1) When (A1, A0) is (1, 0):

Data bus D7 D6 D5 D4 D3 D2 D1 D0

(2) When (A1, A0) is (1, 1):

Serial input data least significant bit (DI0)

Serial input data most significant bit (DI7)

Data bus

D7 D6 D5 D4 D3 D2 D1 D0

Not specified

Shift clock dividing ratio

Acknowledge bit

D1 D0 Divider ratio

00

1/2

01

1/4

10

1/8

11

1/16

Busy flag (Refer to 3, Serial data input/output operation for details.)

“0”: Access possible

“1”: Serial communication in progress. Write access prohibited.

Interrupt control register data

“0”: Interrupt output disable

“1”: Interrupt output disable

CS

RD

Data buses

D0~D7

High impedance

VALID

Read Operation Timing

High impedance

4

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