Device Overview MC9S12G-Family
1.8
1.8.1
1.8.1.1
Device Pinouts
S12GN16 and S12GN32
Pinout 20-Pin TSSOP
SCK0/IOC3/PS6
1
20
PS5/IOC2/MOSI0
SS0/TXD0/PWM3/ECLK/API_EXTCLK/ETRIG3/PS7
RESET
VRH/VDDXRA
VSSXA
EXTAL/RXD0/PWM0/IOC2/ETRIG0/PE0
VSS
XTAL/TXD0/PWM1/IOC3/ETRIG1/PE1
TEST
BKGD
2
3
4
5
6
7
8
9
10
S12GN16
S12GN32
20-Pin TSSOP
19
18
17
16
15
14
13
12
11
PS4/ETRIG2/PWM2/RXD0/MISO0
PAD5/KWAD5/ETRIG3/PWM3/IOC3/TXD0/AN5/ACMPM
PAD4/KWAD4/ETRIG2/PWM2/IOC2/RXD0/AN4/ACMPP
PAD3/KWAD3/AN3/ACMPO
PAD2/KWAD2/AN2
PAD1/KWAD1/AN1
PAD0/KWAD0/AN0
PT0/IOC0/XIRQ
PT1/IOC1/IRQ
Figure 1-3. 20-Pin TSSOP Pinout for S12GN16 and S12GN32
Table 1-8. 20-Pin TSSOP Pinout for S12GN16 and S12GN32
Function
Internal Pull
<----lowest-----PRIORITY-----highest---->
Power
Resistor
Package
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Pin
PS6
PS7
RESET
VDDXRA
VSSXA
PE0 1
VSS
PE1 1
TEST
BKGD
PT1
PT0
PAD0
PAD1
PAD2
2nd
Func.
IOC3
ETRIG3
VRH
ETRIG0
ETRIG1
MODC
IOC1
IOC0
KWAD0
KWAD1
KWAD2
3rd
Func.
SCK0
API_EXTCLK
PWM0
PWM1
IRQ
XIRQ
AN0
AN1
AN2
4th
Func
ECLK
IOC2
IOC3
5th
Func
PWM3
RXD0
TXD0
6th
Func
TXD0
EXTAL
XTAL
7th
Func
SS0
8th
Func
Supply
V DDX
V DDX
V DDX
V DDX
N.A.
V DDX
V DDX
V DDX
V DDA
V DDA
V DDA
CTRL
PERS/PPSS
PERS/PPSS
PULLUP
PUCR/PDPEE
PUCR/PDPEE
RESET pin
Always on
PERT/PPST
PERT/PPST
PER1AD/PPS1AD
PER1AD/PPS1AD
PER1AD/PPS1AD
Reset
State
Up
Up
Down
Down
Down
Up
Disabled
Disabled
Disabled
Disabled
Disabled
MC9S12G Family Reference Manual, Rev.1.23
62
Freescale Semiconductor
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