mc9rs08la8 Freescale Semiconductor, Inc, mc9rs08la8 Datasheet - Page 3

• Manufacturer Part Number: mc9rs08la8
• Description: 8-bit Rs08 Central Processor Unit
• Manufacturer: Freescale Semiconductor, Inc

1
The block diagram,
Freescale Semiconductor
V
V
V
CAP1
CAP2
V
V
V
V
V
V
LL2
LL1
LL3
V
V
V
REFH
REFL
DDAD
SSAD
PP
DD
SS
MCU Block Diagram
LOW-POWER OSCILLATOR
LIQUID CRYSTAL DISPLAY
RESETS AND INTERRUPTS
WAKEUP
20 MHz INTERNAL CLOCK
RS08 SYSTEM CONTROL
VOLTAGE REGULATOR
MODES OF OPERATION
31.25 kHz to 38.4 kHz
POWER MANAGEMENT
COP
CPU
1 MHz to 16 MHz
SOURCE (ICS)
DRIVER (LCD)
USER FLASH
8192 BYTES
USER RAM
RS08 CORE
256 BYTES
(XOSC)
Figure
BDC
LVD
RTI
1, shows the structure of the MC9RS08LA8 MCU.
Figure 1. MC9RS08LA8 Series Block Diagram
MC9RS08LA8 Series MCU Data Sheet, Rev. 1
RESET
NOTES:
1. PTB2/RESET/V
2. PTC6/ACMPO/BKGD/MS is an output only pin
XTAL
EXTAL
SERIAL COMMUNICATION
ANALOG COMPARATOR
SERIAL PERIPHERAL
ANALOG-TO-DIGITAL
CONVERTER(ADC)
2-CH TIMER/PWM
INTERFACE (SPI)
4-BIT KEYBORAD
8-bit Modulo Timer
INTERRUPT(KBI)
INTERFACE (SCI)
MODULE (TPM)
6-CH 10-BIT
(ACMP)
(MTIM)
LCD[0:7]
LCD[8:15]
LCD[16:21]
LCD[22:27]
LCD28
PP
is an input only pin when used as port pin
ADP[5:0]
KBIP[0:7]
SS
SPSCK
MISO
MOSI
ACMP–
ACMPO
TPMCH0
TPMCH1
TCLK
TxD
RxD
TCLK
ACMP+
PTA0/SS/KBIP0/ADP0/LCD27
PTA1/SPSCK/KBIP1/ADP1/LCD26
PTA2/MISO/KBIP2/ADP2/RxD/LCD25
PTA3/MOSI/KBIP3/ADP3/TxD/LCD24
PTA4/KBIP4/ADP4/LCD23
PTA5/KBIP5/ADP5/LCD22
PTA6/KBIP6/ACMP+
PTA7/KBIP7/ACMP–
PTB0/EXTAL
PTB1/XTAL
PTB2/RESET/V
PTC0/RxD
PTC1/TxD
PTC2/TPMCH0
PTC3/TPMCH1
PTC6/ACMPO/BKGD/MS
PTC7/TCLK/LCD28
PTD0/LCD0
PTD1/LCD1
PTD2/LCD2
PTD3/LCD3
PTD4/LCD4
PTD5/LCD5
PTD6/LCD6
PTD7/LCD7
PTE0/LCD8
PTE1/LCD9
PTE2/LCD10
PTE3/LCD11
PTE4/LCD12
PTE5/LCD13
PTE6/LCD14
PTE7/LCD15
LCD[16:21]
MCU Block Diagram
PP
3