13.3 Registers and Register Details
13.3.10 Master address read register (MARH, MARL)
Master address read register (MARH, MARL)
Address: 00007D
H
Reserved Reserved
Read/write
Initial value
Address: 00007C
H
Read/write
Initial value
[bit 15 - 12] Reserved bits:
Always reading '1' from these bits.
[bit 11 - 0] MA11 - MA00 (Master address):
In slave mode, these bits store the address of the master that has won the arbitration in master address
field.
If the unit itself is the master, then the unit address stored in unit address register (MAWH, MAWL) will
be read out.
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Chapter 13: IE Bus
15
14
13
Reserved
(R)
(R)
(R)
(1)
(1)
(1)
7
6
5
MA07
MA06
MA05
(R)
(R)
(R)
(X)
(X)
(X)
12
11
10
MA11
MA10
Reserved
(R)
(R)
(R)
(X)
(1)
(X)
4
3
MA04
MA03
MA02
(R)
(R)
(R)
(X)
(X)
(X)
9
8
MA09
MA08
(R)
(R)
(X)
(X)
2
1
0
MA01
MA00
(R)
(R)
(X)
(X)
MB90580 Series
Bit Number
MARH
Bit Number
MARL