MC9RS08LE4 Datasheet, PDF (3/30 Pages) Freescale Semiconductor, Inc – MCU Block Diagram

1 MCU Block Diagram
The block diagram, Figure 1, shows the structure of the MC9RS08LE4 MCU.
V_DD
V_SS
V_REFH
V_REFL
V_DDAD
V_SSAD
RS08 CORE
CPU
BDC
RS08 SYSTEM CONTROL
RESETS AND INTERRUPTS
MODES OF OPERATION
POWER MANAGEMENT
COP
RTI
WAKEUP
LVD
V_PP
USER FLASH
4,096 BYTES
USER RAM
256 BYTES
20 MHz INTERNAL CLOCK
SOURCE (ICS)
LOW-POWER OSCILLATOR
31.25 kHz to 39.0625 kHz
1 MHz to 20 MHz
(XOSC)
V_DD
V_SS
VOLTAGE REGULATOR
8-CH 10-BIT
ANALOG-TO-DIGITAL
CONVERTER(ADC)
ADP[7:0]
8-BIT KEYBOARD
INTERRUPT(KBI)
SERIAL COMMUNICATION
INTERFACE (SCI)
2-CH TIMER/PWM
MODULE (TPM2)
KBIP[0:7]
TxD
RxD
TPM2CH0
TPM2CH1
TCLK
RESET
2-CH TIMER/PWM
MODULE (TPM1)
TPM1CH0
TPM1CH1
TCLK
XTAL
EXTAL
LCD[8:15]
V_LL3
LIQUID CRYSTAL DISPLAY _LCD[16:21]
DRIVER (LCD)
LCD[0:7]
PTA0/RxD/LCD15
PTA1/TxD/LCD14
PTA2/TPM2CH1/LCD13
PTA3/TPM2CH0/LCD12
PTA4/KBIP0/LCD11
PTA5/KBIP1/LCD10
PTA6/KBIP2/LCD9
PTA7/KBIP3/LCD8
PTB0/TCLK/RESET/V_PP
PTB1/BKGD/MS
PTB2/ADP0/LCD21
PTB3/ADP1/LCD20
PTB4/ADP2/LCD19
PTB5/ADP3/LCD18
PTB6/TPM1CH0/LCD17
PTB7/TPM1CH1/LCD16
PTC0/EXTAL
PTC1/XTAL
PTD0/KBIP4/LCD0
PTD1/KBIP5/LCD1
PTD2/KBIP6/LCD2
PTD3/KBIP7/LCD3
PTD4/ADP4/LCD4
PTD5/ADP5/LCD5
PTD6/ADP6/LCD6
PTD7/ADP7/LCD7
NOTES:
1. PTB0/TCLK/RESET/V_PP is an input-only pin when used as port pin
2. PTB1/BKGD/MS is an output-only pin
Figure 1. MC9RS08LE4 Block Diagram
2 Pin Assignments
This section shows the pin assignments in the packages available for the MC9RS08LE4.
MC9RS08LE4 MCU Data Sheet, Rev. 2
Freescale Semiconductor
3