mcf51em256 Freescale Semiconductor, Inc, mcf51em256 Datasheet - Page 5

• Manufacturer Part Number: mcf51em256
• Description: Microcontrollers Covers Mcf51em256 Mcf51em128
• Manufacturer: Freescale Semiconductor, Inc

PTA0/RPGPIO0/
BKGD/MS/PTC2
IRQ/CLKOUT
V
REFO
V
1
2
REFH
Freescale Semiconductor
V
RESET
DDA
Pins with • are not present on 80-pin devices.
PRACMP1 has two less available inputs on the 80-pin devices.
/V
/V
REFL
SSA
BKGD/MS
Port C:
COP
Hardware CRC
BDM
V1 ColdFire Core
with MAC
FLASH1
128/64 KB
128/64 KB
FLASH2
16/8 KB
RAM
LVD
SIM
INTC
DBG
IRQ
MCF51EM256 Series ColdFire Microcontroller Data Sheet, Rev.3
AD[20]
V
V
AD[20]
V
V
V
V
V
V
AD[20]
AD[20]
ADC 4
ADC 3
ADC 2
ADC 1
DDA
REFH
DDA
REFH
DDA/
REFH/
Robust
Update
Manager
DDA
REFH
V
DD
/V
/V
/V
V
/V
/V
/V
V
SSA
SSA
SSA
SSA
Figure 1. MCF51EM256 Series Block Diagram
VREF
2 Channel TPM
16-Bit MTIM3
RGPIO
SPI1
VREG
REFL
REFL
REFL
SPI2
SPI3
REFL
V
Preliminary—Subject to Change Without Notice
SS1
V
AD[4], AD[13,9:8]
AD[6], AD[19:14]
AD[5], AD[13:10]
AD[7], AD[19:17]
SS2
DADP/M[3]
DADP/M[0]
DADP/M[2]
DADP/M[1]
MISO2
MISO1
MISO3
Port E, A:
Port F, B:
Port F:
RGPIO[15:8]
MOSI2
Port A:
MOSI3
TPMCH[1:0]
MOSI1
TMRCLK[n]
RGPIO[7:0]
Port B, D:
LCD[9:6]:
Port E, B:
TPMCLK
SPSCK2
LCD
SPSCK1
SPSCK3
Port B:
Port A:
Port A:
Port A:
SS1
SS2
SS3
trig[B]
sel[B][1:0]
trig[A]
sel[A][1:0]
trig[C]
sel[C][1:0]
trig[D]
sel[D][1:0]
LCD[43:36]
LCD[34:27]
Port C,E:
LCD[9:6]
LCD[5:0]
Port D:
Port F:
SPI2:
8-Bit MTIM2
8-Bit MTIM1
Internal Clock Source
KBI 1 & 2
EXTAL1 XTAL1
REF CLK
trig[D:A]
sel[D:A][1:0]
PRACMP2
Port A0 or LCD25
XOSC2
XOSC1
Port A0 or LCD25
SCI3
Clock Check
& Select
COUT1
SCI1
IIC
SCI2
Port B/C & D:
Independent
PDB
PRACMP1*
TMRCLK[n]
TMRCLK[n]
IRCLK
Port B, D:
Port B, D:
Port B, E:
KBI1P[7:0]
KBI2P[7:0]
RTC
Port C,F:
EXTAL2
Port B:
EXTAL1
V
EXTRIG
Port B:
Port C:
XTAL2
XTAL1
BAT
CLKO
CLKO
Port F:
COUT1
RX1
TX1
RX3
SDA
RX2
TX3
SCL
TX2
TAMPER
MCF51EM256 Series Configurations
The IRTC is in a separate
power domain, as is the
LCD controller.
PTA7/RGPIO7/TPMCLK/PRACMP1P2/AD13
PTA6/RGPIO6/TPMCH1/AD12
PTA5/RGPIO5/TPMCH0/AD11
PTA4/RGPIO4/SS1
PTA3/RGPIO3/SCLK1
PTA2/RGPIO2/MISO1/AD10
PTA1/RGPIO1/MOSI1
PTA0/RGPIO0/IRQ/CLKOUT
PTB7/RGPIO15/KBI1P5/TMRCLK2/AD15
PTB6/RGPIO14/KBI1P4/TMRCLK1/AD14
PTB5/RGPIO13/SDA/PRACMP2P3
PTB4/RGPIO12/SCL/PRACMP2P2
PTB3/RGPIO11/KBI1P3/PRACMP2P1/TX1
PTB2/RGPIO10/KBI1P2/PRACMP1P0/RX1
PTB1/RGPIO9/KBI1P1/SS3/TX2
PTB0/RGPIO8/KBI1P0/PRACMP2P0/RX2
PTD7/LCD34/KBI2P7
PTD6/LCD33/KBI2P6
PTD5/LCD32/KBI2P5/TMRCLK2
PTD3/LCD30/KBI2P3
PTD2/LCD29/KBI2P2
PTD1/LCD28/KBI2P1
PTD0/LCD27/KBI2P0
PTC7/LCD4
PTC6/LCD3/PRACMP2P4
PTC5/LCD2/PRACMP1P4
PTC4/LCD1/PRACMP2O
PTC3/LCD0/PRACMP1O
BKGD/MS/PTC2
PTC1/KBI1P7/XTAL2/TX3
PTC0/KBI1P6/EXTAL2/RX3
PTD4/LCD31/KBI2P4/TMRCLK1
PTF7/LCD43/AD19
PTF6/LCD42/AD18
PTF5/LCD41/AD17
PTF4/LCD40/AD16
PTF3/LCD39/TX3
PTF2/LCD38/RX3
PTF1/LCD37/EXTRIG
PTF0/LCD36
PTE7/LCD5
PTE6/SS3/TX2
PTE5/SCLK3
PTE4/MISO3/MOSI3
PTE3/MOSI3/MISO3
PTE2/PRACMP1P1
PTE1/PRACMP1P3/AD9
PTE0/PRACMP1O/AD8
DADP/M[3,0]
AD[7,4]
DADP/M[2:1]
AD[6:5]
5