7630 datasheet(110/238 Pages) RENESAS

110 / 238 page

7630 Group User’s Manual

2-44

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2.4 Controller Area Network (CAN) module

Fig. 2.4.17 Structure of CAN transmit abort register (CABORT)

Fig. 2.4.18 Structure of CAN transmit/receive buffer registers 0 (CTB0/CRB0)

CAN transmit abort register

b7 b6 b5 b4 b3 b2 b1 b0

CAN transmit abort register (CABORT) [Address: 003E16]

Name

Function1

Note 1: R0/R1 denote read access, W0/W1 denote write access.

At reset

Transmit abort control bit

R0: No transmit abort requested

Note 2: Setting this bit to “1” is enabled only when CTRM.3 (Figure 2.4.3) is set.

R1: Transmit abort requested

W0: Clear transmit abort request

W1: Transmit abort requested

Undefined at read.

Not used

CAN transmit/receive buffer registers 0

b7 b6 b5 b4 b3 b2 b1 b0

CAN transmit buffer register 0 (CTB0) [Address: 004016]

CAN receive buffer register 0 (CRB0) [Address: 005016]

Name

Function

At reset

Standard identifier bit 6

For CTB0: These bits represent part of

the identifier field of a frame to be

transmitted.

For CRB0: These bits represent part of

the identifier field of a frame received.

Standard identifier bit 7

Standard identifier bit 8

Standard identifier bit 9

Standard identifier bit 10

Not used

When these bits are read out, the values

are "0". Don’t write to "1".

7630 Datasheet(PDF) 110 Page - Renesas Technology Corp