Figure 1-1 Mc9S12Dt256 Block Diagram - Motorola MC9S12DT256 User Manual

Figure 1-1 MC9S12DT256 Block Diagram

256K Byte Flash EEPROM
12K Byte RAM
4K Byte EEPROM
VDDR
VSSR
VREGEN Voltage Regulator
VDD1,2
VSS1,2
Single-wire Background
BKGD
Debug Module
XFC
Clock and
VDDPLL
Reset
PLL
VSSPLL
Generation
EXTAL
Module
XTAL
RESET
PE0
XIRQ
PE1
IRQ
PE2
R/W
PE3
LSTRB
PE4
ECLK
PE5
MODA
PE6
MODB
PE7
NOACC/XCLKS
TEST
Multiplexed Address/Data Bus
DDRA
PTA
Multiplexed
Wide Bus
Multiplexed
Narrow Bus
Internal Logic 2.5V I/O Driver 5V
VDD1,2
VSS1,2
A/D Converter 5V &
PLL 2.5V
Voltage Regulator Reference
VDDPLL
VSSPLL
Voltage Regulator 5V & I/O
ATD0
AN0
AN1
AN2
AN3
AN4
AN5
AN6
AN7
CPU12
Periodic Interrupt
COP Watchdog
Clock Monitor
Breakpoints
Enhanced Capture
System
Timer
Integration
Module
(SIM)
SCI0
SCI1
SPI0
DDRB
BDLC
PTB
(J1850)
CAN0
CAN1
CAN4
IIC
VDDX
VSSX
PWM
VDDA
VSSA
SPI1
VDDR
VSSR
SPI2
MC9S12DT256 Device User Guide — V03.07
VRH
ATD1
VRL
VDDA VDDA
VSSA VSSA
PAD00 AN0
PAD01 AN1
AN2
PAD02
PAD03 AN3
PAD04 AN4
PAD05 AN5
PAD06
AN6
PAD07 AN7
PIX0
PIX1
PPAGE
PIX2
PIX3
PIX4
PIX5
ECS
IOC0
IOC1
IOC2
IOC3
IOC4
IOC5
IOC6
IOC7
RXD
TXD
RXD
TXD
MISO
MOSI
SCK
SS
RXB
TXB
RXCAN
TXCAN
RXCAN
TXCAN
RXCAN
TXCAN
KWJ0
KWJ1
SDA KWJ6
SCL KWJ7
PWM0 KWP0
PWM1 KWP1
PWM2 KWP2
PWM3 KWP3
PWM4 KWP4
PWM5 KWP5
PWM6 KWP6
PWM7 KWP7
MISO KWH0
MOSI KWH1
SCK KWH2
SS KWH3
MISO KWH4
MOSI KWH5
SCK KWH6
SS KWH7
VRH VRH
VRL VRL
VDDA
VSSA
PAD08
PAD09
PAD10
PAD11
PAD12
PAD13
PAD14
PAD15
PK0 XADDR14
PK1 XADDR15
PK2
XADDR16
PK3 XADDR17
PK4 XADDR18
PK5 XADDR19
PK7 ECS
PT0
PT1
PT2
PT3
PT4
PT5
PT6
PT7
PS0
PS1
PS2
PS3
PS4
PS5
PS6
PS7
PM0
PM1
PM2
PM3
PM4
PM5
PM6
PM7
PJ0
PJ1
PJ6
PJ7
PP0
PP1
PP2
PP3
PP4
PP5
PP6
PP7
PH0
PH1
PH2
PH3
PH4
PH5
PH6
PH7
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