Datasheet
Chapter 2 Port Integration Module (PIM9C32) Block Description
84 MC9S12C-Family / MC9S12GC-Family Freescale Semiconductor
Rev 01.24
2.3.2.1.6 Port T Polarity Select Register (PTTST)
Read: Anytime.
Write: Anytime.
2.3.2.1.7 Port T Module Routing Register (MODRR)
Read: Anytime.
Write: Anytime.
NOTE
MODRR[4] must be kept clear on devices featuring a 4 channel PWM.
Module Base + 0x0005
76543210
R
PPST7 PPST6 PPST5 PPST4 PPST3 PPST2 PPST1 PPST0
W
Reset 0 0 0 00000
Figure 2-8. Port T Polarity Select Register (PPST)
Table 2-8. PPST Field Descriptions
Field Description
7–0
PPST[7:0]
Pull Select Port T — This register selects whether a pull-down or a pull-up device is connected to the pin.
0 A pull-up device is connected to the associated port T pin, if enabled by the associated bit in register PERT
and if the port is used as input.
1 A pull-down device is connected to the associated port T pin, if enabled by the associated bit in register PERT
and if the port is used as input.
Module Base + 0x0007
76543210
R000
MODRR4 MODRR3 MODRR2 MODRR1 MODRR0
W
Reset — — — 00000
= Unimplemented or Reserved
Figure 2-9. Port T Module Routing Register (MODRR)
Table 2-9. MODRR Field Descriptions
Field Description
4–0
MODRR[4:0]
Module Routing Register Port T — This register selects the module connected to port T.
0 Associated pin is connected to TIM module
1 Associated pin is connected to PWM module