mpc823rg Freescale Semiconductor, Inc, mpc823rg Datasheet - Page 955

• Manufacturer Part Number: mpc823rg
• Description: Mpc823 Powerquicc Integrated Communications Processor For Portable Systems
• Manufacturer: Freescale Semiconductor, Inc

The interrupt vector table is the same as the CPM interrupt priority table, except for two
differences. First, the USB and SCCx vectors are fixed. They are not affected by the USB
and SCCx group mode, spread mode, or the relative priority order of the USB and SCCs.
Second, an error vector is the last entry in this table. The error vector is issued by the
communication processor module if there were no other pending interrupts or if it requested
one, but you masked it before it was serviced by the core. You must provide an error
interrupt service routine, even if it is simply an rfi instruction.
16.15.5 Programming the CPM Interrupt Controller
16.15.5.1 CPM INTERRUPT CONFIGURATION REGISTER. The 24-bit read/write CPM
interrupt configuration register (CICR) defines the request level for the CPM interrupts, the
priority between the USB and SCCs and the highest priority interrupt.
Bits 0–7 and 25–30—Reserved
These bits are reserved and must be set to 0.
SCDP—SCCd Priority Order
This field defines whether the USB or SCCs will assert a request in the SCCd priority
position.
CICR
RESET
RESET
FIELD
ADDR
FIELD
ADDR
R/W
R/W
BIT
BIT
00 = USB will assert its request in the SCCd position.
01 = SCC2 will assert its request in the SCCd position.
10 = SCC3 will assert its request in the SCCd position.
11 = Neither the USB or SCCx will assert its request in the SCCd position.
IRL0 IRL1 IRL2 HP0
R/W
16
0
0
R/W
17
1
0
R/W
18
2
0
Freescale Semiconductor, Inc.
RESERVED
R/W
For More Information On This Product,
19
3
0
R/W
0
HP1
R/W
20
MPC823 REFERENCE MANUAL
4
0
Go to: www.freescale.com
HP2
R/W
21
5
0
(IMMR & 0xFFFF0000) + 0x940
(IMMR & 0xFFFF0000) + 0x942
HP3
R/W
22
6
0
HP4
R/W
23
7
0
R/W
IEN
24
8
0
SCDP
R/W
0
25
9
Communication Processor Module
10
26
SCCP
R/W
0
RESERVED
11
27
R/W
0
12
28
SCBP
R/W
0
13
29
14
30
SCAP
R/W
16-503
0
SPS
R/W
15
31
0