mc9s08se4 Freescale Semiconductor, Inc, mc9s08se4 Datasheet - Page 3

• Manufacturer Part Number: mc9s08se4
• Description: 8-bit Hcs08 Central Processor Unit
• Manufacturer: Freescale Semiconductor, Inc

1
The block diagram,
Freescale Semiconductor
IRQ
V
V
SS
DD
V
V
SSAD
DDAD
Notes:
pins not available on 16-pin package
When PTA4 is configured as BKGD, pin is bi-directional.
/V
For the 16-pin package: V
/V
REFL
REFH
(MC9S08SE8 = 8192 BYTES)
(MC9S08SE4 = 4096 BYTES)
COP
(MC9S08SE8 = 512 BYTES)
(MC9S08SE4 = 256 BYTES)
RESETS AND INTERRUPTS
HCS08 SYSTEM CONTROL
LOW-POWER OSCILLATOR
20 MHz INTERNAL CLOCK
MODES OF OPERATION
VOLTAGE REGULATOR
CPU
POWER MANAGEMENT
MCU Block Diagram
31.25 kHz to 38.4 kHz
HCS08 CORE
1 MHz to 16 MHz
USER RAM
SOURCE (ICS)
USER FLASH
(XOSC)
IRQ
Figure
BDC
V
V
V
V
SSAD
SSAD
DDAD
REFL
REFH
LVD
/V
REFL
1, shows the structure of the MC9S08SE8 series MCUs.
and V
EXTAL
XTAL
Figure 1. MC9S08SE8 Series Block Diagram
BKGD/MS
DDAD
MC9S08SE8 Series MCU Data Sheet, Rev. 2
/V
REFH
are double bonded to V
REAL-TIME COUNTER (RTC)
SERIAL COMMUNICATIONS
INTERFACE MODULE (SCI)
2-CHANNEL TIMER/PWM
1-CHANNEL TIMER/PWM
KEYBOARD INTERRUPT
DEBUG MODULE (DBG)
ANALOG-TO-DIGITAL
10-CHANNEL, 10-BIT
CONVERTER (ADC)
MODULE (TPM1)
MODULE (TPM2)
MODULE (KBI)
SS
and V
DD
respectively.
KBIP7–KBIP0
TCLK
TPM1CH1–TPM1CH0
RxD
TxD
TCLK
TPM2CH0
ADP9–ADP0
PTA1/KBIP1/TPM1CH1/ADP1
PTA0/KBIP0/TPM1CH0/ADP0
PTA5/IRQ/TCLK/RESET
PTA4/BKGD/MS
PTA3/KBIP3/ADP3
PTA2/KBIP2/ADP2
PTA7/TPM1CH1/ADP5
PTA6/TPM1CH0/ADP4
PTB7/EXTAL
PTB6/XTAL
PTB5
PTB4/TPM2CH0
PTB3/KBIP7/ADP9
PTB2/KBIP6/ADP8
PTB1/KBIP5/TxD/ADP7
PTB0/KBIP4/RxD/ADP6
PTC7
PTC6
PTC5
PTC4
PTC3
PTC2
PTC1
PTC0
MCU Block Diagram
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