17
8Bit Single Chip Microcontroller
DMC73C167
4.3 Peripheral File (PF)
The peripheral file (PF) resides in location 0100h to 01FFh of the DMC73C167's
address space. Some of the instructions are optimized for efficient access to and from
the registers that reside in the peripheral file. Peripheral file locations are number P0-P255.
The PF registers are used for interrupt control, parallel I/O, timer control, 14-bit
PWM, OSD, 6-bit PWM, I2C and A/D converter control. On screen Display RAM (video
RAM) is also mapped in the peripheral file.
Figure 4-2. DMC73C167 Peripheral File Map
Memory address
100h
14Bh
14Ch
15Fh
160h
173h
174h
17Fh
180h
193h
194h
1FFh
P0
:
P75
P76
:
P95
P96
:
P115
P116
:
P127
P128
:
P147
P148
:
P255
Peripheral Registers
Reserved
Line A Video RAM
Reserved
Line B Video RAM
Not Available
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