Panasonic MN101C77C User Manual

Page 385

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XI - 59

Chapter 11 Serial Interface 0, 1

Operation

Setup Procedure

Description

(6)

Select the start condition.

SC0MD0 (x'3F92')

bp3 : SC0STE = 1

(7)

Select the first bit to be transfered.

SC0MD0 (x'3F92')

bp4 : SC0DIR = 0

(8)

Control the output data.

SC0MD2 (x'3F94')

bp0 : SC0BRKE = 0

(9)

Select the added parity bit.

SC0MD2 (x'3F94')

bp3 : SC0NPE = 0

bp5-4 : SC0PM1-0 = 00

(10) Specify the frame mode.

SC0MD2 (x'3F94')

bp7-6 : SC0FM1-0 = 11

(11) Set the SC0MD1 register.

Select the communication type.

SC0MD1 (x'3F93')

bp0 : SC0CMD = 1

(12) Select the clock frequency.

SC0MD1 (x'3F93')

bp3 : SC0CKM = 1

bp2 : SC0MST = 1

(13) Control the pin function.

SC0MD1 (x'3F93')

bp4 : SC0SBOS = 1

bp5 : SC0SBIS = 1

bp7 : SC0IOM = 0

(6)

Set the SC0STE flag of the SC0MD0 register

to "1" to enable start condition.

(7)

Set the SC0DIR flag of the SC0MD0 register

to "0" to select MSB as first transfer bit.

(8)

Set the SC0BRKE flag of the SC0MD2 regis-

ter to "0" to select serial data transmission.

(9)

Set the SC0PM1-0 flag of the SC0MD2

register to "00" to select 0 parity, and set the

SC0NPE flag to "0" to add parity bit.

(10) Set the SC0FM1-0 flag of the SC0MD2

register to "11" to select 8 bits + 2 stop bits at

the frame mode.

(11) Set the SC0CMD flag of the SC0MD1 register

to "1" to select duplex UART.

(12) Set the SC0CKM flag of the SC0MD1 register

to "1" to select "divided by 8" at source clock.

And, the SC0MST flag should be always set to

"1" to select colck master.

(13) Set the SC0SBOS, SC0SBIS flag of the

SC0MD1 register to "1" to set the TXD0A pin

to serial data output and the RXD0A pin to

serial data input.

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