Motorola MPC823e Reference Manual page 472

Communication Processor Module
16.2.6.4.1 RISC Timer Table Parameter RAM Memory Map. Two areas of internal RAM
are used for the RISC timer tables—RISC timer table parameter RAM and the RISC timer
table entries—which are illustrated in Figure 16-6. The RISC timer table parameter RAM
area begins at the RISC timer base address and is used for the general timer parameters.
See Table 16-4 for details.
Note: All references to registers in the parameter RAM table are actually implemented
in the dual-port RAM area as a memory-based register.
DUAL-PORT RAM
16 RISC
TIMER TABLE
ENTRIES
(UP TO 64 BYTES)
INDEX POINTER
TIMER PARAMETER RAM
IMMR + 3DB0
TIMERBASE
TM_BASE
RISC
TIMER TABLE
PARAMETER RAM
(14 BYTES)
Figure 16-6. RISC Timer Table RAM Usage
16-18 MPC823e REFERENCE MANUAL MOTOROLA