Mailbox Configuration Register (Mbcr) - Renesas H8S Series Hardware Manual

15.3.4

Mailbox Configuration Register (MBCR)

The mailbox configuration register (MBCR) is a 16-bit register that is used to set the transfer
direction for each mailbox.
Bit Bit Name
15 MBCR7
14 MBCR6
13 MBCR5
12 MBCR4
11 MBCR3
10 MBCR2
9 MBCR1
8 —
7 MBCR15
6 MBCR14
5 MBCR13
4 MBCR12
3 MBCR11
2
MBCR10
1 MBCR9
0 MBCR8
Initial Value R/W
0 R/W
0 R/W
0 R/W
0 R/W
0 R/W
0 R/W
0 R/W
1 R
0 R/W
0 R/W
0 R/W
0 R/W
0 R/W
0 R/W
0 R/W
0 R/W
Section 15 Controller Area Network (HCAN)
Description
These bits set the transfer direction for the
corresponding mailboxes from 1 to 15. MBCRn
determines the transfer direction for mailbox n
(n = 1 to 15).
0: Corresponding mailbox is set for transmission
1: Corresponding mailbox is set for reception
Bit 8 is reserved. This bit is always read as 1 and
the write value should always be 1.
Rev. 6.00 Mar 15, 2006 page 393 of 570
REJ09B0211-0600