MC68MH360RC25L Freescale Semiconductor, MC68MH360RC25L Datasheet - Page 123

• Manufacturer Part Number: MC68MH360RC25L
• Description: IC MPU QUICC 25MHZ 241-PGA
• Manufacturer: Freescale Semiconductor

Specifications of MC68MH360RC25L

• Processor Type: M683xx 32-Bit
• Speed: 25MHz
• Voltage: 5V
• Mounting Type: Surface Mount
• Package / Case: 241-PGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -

9.5 QMC Memory Organization
Figure 9-5 shows the internal memory map of the MPC860MH when the MSC microcode
is resident. Note that the microcode resides in the first 1 Kbyte of dual-ported RAM and
uses the last 256 bytes of dual-ported RAM for data. This means that the channel-specific
parameters are offset from IMMR + 0x2400, and may occupy up to IMMR + 0x2BFF. This
space can hold parameters for up to 32 channels. Any unused memory, and the 768 bytes
from IMMR = 0x2C00 may be used by the user for buffer descriptors or as standard RAM.
Figure 9-5. MPC860MH Internal Memory Map with MSC Microcode Enabled
Parameter RAM
Freescale Semiconductor, Inc.
IMMR
IMMR + 0x2000
IMMR + 0x3C00
For More Information On This Product,
4-Kbyte
Dual-Ported
RAM
4-Kbyte
Internal
Registers
Chapter 9. Multi-Subchannel (MSC) Microcode
Go to: www.freescale.com
256-byte Microcode
1 Kbyte Microcode
2 Kbytes for Channel-
Specific Parameters
768-Byte User/BD
IMMR + 0x2000
IMMR + 0x2400
IMMR + 0x2C00
IMMR + 0x2F00
IMMR + 0x3000
Microcode &
Microcode Scratch
Not implemented