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Toshiba H1 SERIES TLCS-900 User Manual

Page 146

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TMP92CM22

2007-02-16

92CM22-144

Figure 3.9.3 Block Diagram of SIO1

Selector

φT0
φT2
φT8
φT32

SC1MOD0

Receive buffer 1 (Shift register)

RXDCLK

SC1MOD0

Pr

escaler

Selector

TA0TRG

(from TMRA0)

UART

mode

BR1CR

Baud rate generater

Selector

SC1MOD0

Selector

÷ 2

I/O interface mode

SC1CR

Receive control

(UART only

÷ 16)

Transmission

counter

(UART only

÷ 16)

Receive buffer

Transmission

control

INTRX1
INTTX1

Receive buffer 2 (SC1BUF)

RB8

Error flag

SC1CR

Serial channel

interrupt control

TB8

CTS1

(Shared

with PF5)

TXD1

(Shared

with PF3)

Transmission buffer

(SC1BUF)

RXD1
(Shared

with PF4)

TXDCLK

SC1MOD0

f

io

SC1MOD0

SCLK1 output
(Shared

with PF5)

SCLK1 input
(Shared

with PF5)

SIOCLK

Internal data bus

Parity control

SC1CR

Serial clock generation circuit

BR1CR

BR1ADD

BR1CR

I/O interface mode

φT0

2

64

4 8 16 32

Prescaler

φT2 φT8 φT32

Interrupt request

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