Toshiba H1 Series User Manual

Page 333

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background image

TMP92CZ26A

92CZ26A-330

7 6 5 4 3 2 1 0

Bit symbol

− BR0ADDE

BR0CK1

BR0CK0

BR0S3

BR0S2

BR0S1

BR0S0

Read/Write R/W

After

Reset

0 0 0 0 0 0 0 0

Function

Always

write “0”

+(16−K)/16
division

0: Disable

1: Enable

00:

φT0

01:

φT2

10:

φT8

11:

φT32

7 6 5 4 3 2 1 0

bit Symbol

BR0K3

BR0K2

BR0K1

BR0K0

Read/Write

R/W

After reset

0

0

0

0

Function



Sets frequency divisor “K”

(divided by N + (16-K) / 16)

Sets baud rate generator frequency divisor

BR0CR<BR0ADDE>

= 1

BR0CR<BR0ADDE>

= 0

BR0CR

<BR0S3:0>

BR0ADD

<BR0K3:0>

0000(N

= 16)

or

0001 (N

= 1)

0010 (N

= 2)

to

1111 (N

= 15)

0001 (N

= 1) (UART only)

to

1111(N

= 15)

0000(N

= 16)

0000 Disable

Disable

0001(K

= 1)

to

1111(K

= 15)

Disable

Divided by

N

+ (16-K) /16

Divided by N

BR0CR

(1203H)

+(16−K)/16 division enable

00

Internal clock

φT0

01

Internal clock

φT2

10

Internal clock

φT8

11

Internal clock

φT32

Setting the input clock of baud rate generator

0 Disable

1 Enable

Divided frequency setting

BR0ADD

(1204H)

Note1:Availability of +(16-K)/16 division function

N

UART mode

I/O mode

2 to 15

1 , 16

The baud rate generator can be set “1” in UART mode and disable +(16-K)/16 division function.Don’t use in I/O

interface mode.

Note2:Set BR0CR <BR0ADDE> to 1 after setting K (K = 1 to 15) to BR0ADD<BR0K3:0> when +(16-K)/16 division function is

used. Writes to unused bits in the BR0ADD register do not affext operation, and undefined data is read from these

unused bits.

Figure 3.14.8 Baud rate generator control (channel 0, BR0CR, BR0ADD)

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