External Bus Interface
MPC561/MPC563 Reference Manual, Rev. 1.2
Freescale Semiconductor
9-3
Figure 9-2. MPC561/MPC563 Bus Signals
9.4
Bus Interface Signal Descriptions
describes each signal in the bus interface unit. More detailed descriptions can be found in
subsequent subsections. The buses are described in big endian manner, which means that bit 0 is the most
significant bit in a bus (MSB), and bit 31 is the least significant bit (LSB).
ADDR[8:31]
RD/
WR
BURST
TSIZ[0:1]
AT[0:3]
TS
BI
/
STS
KR
DATA[0:31]
TA
TEA
BDIP
BR
BG
BB
CR
24
1
1
2
4
1
1
1
1
1
32
1
1
1
1
1
1
Address
and
Transfer
Attributes
Transfer
Start
Arbitration
Data
Transfer
Termination
Reservation
Protocol
Cycle
RSV
PTR
1
RETRY
1
Bus
Interface
Summary of Contents for MPC561
Page 84: ...MPC561 MPC563 Reference Manual Rev 1 2 lxxxiv Freescale Semiconductor...
Page 144: ...Signal Descriptions MPC561 MPC563 Reference Manual Rev 1 2 2 46 Freescale Semiconductor...
Page 206: ...Central Processing Unit MPC561 MPC563 Reference Manual Rev 1 2 3 62 Freescale Semiconductor...
Page 302: ...Reset MPC561 MPC563 Reference Manual Rev 1 2 7 14 Freescale Semiconductor...
Page 854: ...Time Processor Unit 3 MPC561 MPC563 Reference Manual Rev 1 2 19 24 Freescale Semiconductor...
Page 968: ...Development Support MPC561 MPC563 Reference Manual Rev 1 2 23 54 Freescale Semiconductor...
Page 1144: ...Internal Memory Map MPC561 MPC563 Reference Manual Rev 1 2 B 34 Freescale Semiconductor...
Page 1212: ...TPU3 ROM Functions MPC561 MPC563 Reference Manual Rev 1 2 D 60 Freescale Semiconductor...
Page 1216: ...Memory Access Timing MPC561 MPC563 Reference Manual Rev 1 2 E 4 Freescale Semiconductor...