MSM9225 datasheet(18/74 Pages) OKI

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MSM9225

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(1) Time segment 1: TSEG13 to TSEG10

This is a 4-bit register to set the sampling point.

The relationship between bit content and TSEG1 is as follows:

At reset, TSEG13 to TSEG10 are set to "0000".

(2) Time segment 2: TSEG22 to TSEG20

This is a 3-bit register to set the transmit point.

The relationship between the bit content and TSEG2 is as follows:

At reset, TSEG22 to TSEG20 are set to "000".

TSEG13

TSEG12

TSEG11

TSEG10

TSEG1

0000

0001

····

1110

1111

1 ¥ BTL cycle

2 ¥ BTL cycle

15 ¥ BTL cycle

16 ¥ BTL cycle

TSEG22

TSEG21

TSEG20

TSEG2

000

001

···

110

111

1 ¥ BTL cycle

2 ¥ BTL cycle

7 ¥ BTL cycle

8 ¥ BTL cycle

5. CAN bus timing register 1 (BTR1: 2Ehex)

This register sets the sampling count, sampling point and transmit point used for bus timing.

Writing to the BTR1 bit is enabled, when the INIT bit of the CAN control register (CANC:

0Ehex) is "1".

The bit configuration is as follows:

76543210

Address MSB

2Eh

LSB

TSEG10 :

TSEG11 :

TSEG12 :

TSEG13 :

TSEG20 :

TSEG21 :

TSEG22 :

Not used :

Time

segment 1

Time

segment 2

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