mpc823rg Freescale Semiconductor, Inc, mpc823rg Datasheet - Page 466

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

Communication Processor Module
The dual-port RAM can either be accessed by the RISC microcontroller or one of two bus
masters—the core or the serial DMA channel. When the dual-port RAM is accessed by one
of these, it is accessed in two clocks. However, when it is accessed by the microcontroller,
it is accessed in one clock. When simultaneous accesses occur with at least one write
operation, the microcontroller is delayed by one clock.
Freescale Semiconductor, Inc.
Figure 16-5. Dual-Port RAM Memory Map
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For More Information On This Product,
MPC823 REFERENCE MANUAL
Go to: www.freescale.com
BD / DATA / µCODE
BD / DATA / µCODE
BD / DATA / µCODE
BD / DATA / µCODE
BD / DATA / µCODE
BD / DATA / µCODE
PARAMETER RAM
BD / DATA /µCODE
BD / DATA
BD / DATA
DPRAM_BASE = (IMMR & 0xFFFF0000) + 0x2E00
DPRAM_BASE = (IMMR & 0xFFFF0000) + 0x2000
DPRAM_BASE = (IMMR & 0xFFFF0000) + 0x2400
DPRAM_BASE = (IMMR & 0xFFFF0000) + 0x3000
DPRAM_BASE = (IMMR & 0xFFFF0000) + 0x2200
DPRAM_BASE = (IMMR & 0xFFFF0000) + 0x3A00
DPRAM_BASE = (IMMR & 0xFFFF0000) + 0x3C00
DPRAM_BASE = (IMMR & 0xFFFF0000) + 0x2800
DPRAM_BASE = (IMMR & 0xFFFF0000) + 0x3800
DPRAM_BASE = (IMMR & 0xFFFF0000) + 0x3400
MOTOROLA