ViewSonic N2201w-1M - Page 20

ViewSonic Corporation Confidential - Do Not Copy N2201w-1M
17
CPU:
Block diagram:
The MC9S08QG4 is a member of the low-cost, high-performance HCS08 Family of 8-bit microcontroller
units (MCUs).
IIC MODULE (IIC)
SERIAL PERIPHERAL
INTERFACE MODULE (SPI)
USER FLASH
USER RAM
HCS08 CORE
CPU
BDC
16-BIT TIMER/PWM
MODULE (TPM)
PTB7/SCL/EXTAL
PORT B
HCS08 SYSTEM CONTROL
RESETS AND INTERRUPTS
MODES OF OPERATION
POWER MANAGEMENT
RTI COP
IRQ LVD
INTERFACE MODULE (SCI)
SERIAL COMMUNICATIONS
8-BIT MODULO TIMER
MODULE (MTIM)
(MC9S08QG4 = 4096 BYTES)
PTB6/SDA/XTAL
PTB5/TPMCH1/SS
PTB4/MISO
PTB3/KBIP7/MOSI/ADP7
PTB2/KBIP6/SPSCK/ADP6
VOLTAGE REGULATOR
PORT A
PTA5//IRQ/TCLK/RESET
PTA4/ACMPO/BKGD/MS
PTA3/KBIP3/SCL/ADP3
PTA2/KBIP2/SDA/ADP2
PTA1/KBIP1/ADP1/ACMP–
PTA0/KBIP0/TPMCH0/ADP0/ACMP+
8-BIT KEYBOARD
INTERRUPT MODULE (KBI)
(MC9S08QG4 = 256 BYTES)
DEBUG MODULE (DBG)
ANALOG COMPARATOR
(ACMP)
MISO
SCL
SDA
MOSI
SPSCK
RxD
TxD
LOW-POWER OSCILLATOR
16-MHz INTERNAL CLOCK
SOURCE (ICS)
31.25 kHz to 38.4 kHz
1 MHz to 16 MHz
(XOSC)
EXTAL
XTAL
VSS
VDD
VSSA
VDDA
VREFL
VREFH
4
4
ANALOG-TO-DIGITAL
CONVERTER (ADC)
10-BIT
4
SS
PTB1/KBIP5/TxD/ADP5
PTB0/KBIP4/RxD/ADP4
TPMCH0
TPMCH1
ACMPO
ACMP–
TCLK
BKGD/MS
IRQ
ACMP+
4