Cmsemicon BAT32G1 9 Series, User Manual, Page: 38 / 1149

BAT32G1x9 user manual | Chapter 2 Pin function
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38 / 1149 Rev.1.02
2.3.6 Port input mode register (PIMxx).
This is the register that sets the input buffer in bits. When communicating serially with external devices with
different voltage level, the TTL input buffer can be selected.
After generating a reset signal, the value of these registers changes to "00H".
Register address = base a offset address; The base address of the PIM register is 0x40040000, and the
partial address is shown in the figure below.
Figure2-6 format of port input mode register
symbol 7 6 5 4 3 2 1 0
Offset
address
After
reset
R/W
PIM0 0 0 0 PIM04 PIM03 0 PIM01 0 0x040 00H R/W
PIM1 PIM17 PIM16 PIM15 PIM14 0 0 0 PIM10 0x041 00H R/W
PIM3 0 0 0 0 0 0 0 PIM30 0x043 00H R/W
PIM4 0 0 0 PIM44 PIM43. 0 0 0 0x044 00H R/W
PIM5 0 0 PIM55 0 0 0 0 PIM50 0x045 00H R/W
PIM8 0 0 0 0 0 0 PIM81 PIM80 0x048 00H R/W
PIM14 0 0 0 0 PIM143. PIM142. 0 0 0x04E 00H R/W
PIMmn
Selection of input buffers for the Pmn pin
0
Schmidt input buffer
1
TTL input buffer
Note That the unassigned bits must be set at an initial value.