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7.6.25
G-Bus Bad Address Register
The Bad Address register reports the G-Bus address when there is bus error on the G-Bus
and the G-Bus bridge is writing to the device on the G-bus. This register can only be set
when the ERR bit in the Status register is "0". Note that the first error is held in case multiple
errors occur.
63
31
Bits
63:32
31:0
7.6.26
G-Bus Arbiter Request Status Register
This register indicates which G-master is requesting the G-Bus.
63
31
Table 7-28 G-Bus Arbiter Request Status Register Fields
Bits
63:16
15:0
TX7901 User's Manual (Rev. 6.30T – Nov, 2001)
Chapter 7: C790 Bus/G-Bus Bridge
ERR
Table 7-27 C790 Bus Status Register Fields
Field
R/W
Reserved. Must be written as zeroes,
–
R/O
and returns zeroes when read.
ERR
R/O
Bad G-Bus Address
0
16
Field
R/W
Reserved. Must be written as zeroes, and
–
R/O
returns zeroes when read.
G-Bus Request
Req[15:0]
R/O
0: Request
1: No request
0
32
32
Description
0
32
16 15
Req[15:0]
16
Description
7-22
32
0
Initial Value
0
Undefined
32
0
Initial Value
0x0000
Undefined
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