MPC8260 UPM Timing Diagram, Rev. 2

Freescale Semiconductor

5

UPM Programming

# MDR

addis r2,r0,0x8000

ori

r2,r2,0xa800

addis r1,r0,0x0f01

ori

r1,r1,0x0188

stw

r2, 0x0000(r1)

# Single byte hit (stb) of 0x0100_0008 to write MDR to RAM array 18

addis r2,r0,0x0100

ori

r2,r2,0x0000

stb

r1, 0x0008(r2)

# MDR

addis r2,r0,0x1000

ori

r2,r2,0x0005

addis r1,r0,0x0f01

ori

r1,r1,0x0188

stw

r2, 0x0000(r1)

# Single byte hit (stb) of 0x0100_0008 to write MDR to RAM array 19

addis r2,r0,0x0100

ori

r2,r2,0x0000

stb

r1, 0x0008(r2)

# MAMR OP = 00 for normal operation

addis r2,r0,0x0000

ori

r2,r2,0x0000

addis r1,r0,0x0f01

ori

r1,r1,0x0170

stw

r2, 0x0000(r1)

#Access to memory controlled by UPM

addis r2,r0,0x0100

ori

r2,r2,0x0000

lwz

r3, 0x0018(r2)

stw

r1, 0x0018(r2)