MCU Block Diagram

MC9S08QE32 MCU Series Data Sheet, Rev. 1

Freescale Semiconductor

3

1

MCU Block Diagram

The block diagram, Figure 1, shows the structure of the MC9S08QE32 MCU.

Figure 1. MC9S08QE32 Series Block Diagram

IIC MODULE (IIC)

USER FLASH

USER RAM

HCS08 CORE

CPU

BDC

PTB7/SCL/EXTAL

HCS08 SYSTEM CONTROL

RESETS AND INTERRUPTS

MODES OF OPERATION

POWER MANAGEMENT

COP

LVD

PTB6/SDA/XTAL

PTB5/TPM1CH1/SS

PTB4/TPM2CH1/MISO

PTB3/KBI1P7/MOSI/ADP7

PTB2/KBI1P6/SPSCK/ADP6

VOLTAGE REGULATOR

PTA1/KBI1P1/TPM2CH0/ADP1/ACMP1–

ANALOG COMPARATOR

(ACMP1)

LOW-POWER OSCILLATOR

50.33 MHz INTERNAL CLOCK

SOURCE (ICS)

31.25 kHz to 38.4 kHz

1 MHz to 16 MHz

(XOSCVLP)

ANALOG-TO-DIGITAL

CONVERTER (ADC12)

10-CHANNEL, 12-BIT

PTB1/KBI1P5/TxD1/ADP5

PTB0/KBI1P4/RxD1/ADP4

PTC7/TxD2/ACMP2-

PTC6/RxD2/ACMP2+

PTC5/TPM3CH5/ACMP2O

PTC4/TPM3CH4

REAL-TIME COUNTER

(MC9S08QE32 = 32768 BYTES)

(MC9S08QE16 = 16384 BYTES)

(MC9S08QE32 = 2048 BYTES)

(MC9S08QE16 = 1024 BYTES)

PTA3/KBI1P3/SCL/ADP3

PTA2/KBI1P2/SDA/ADP2

PTA0/KBI1P0/TPM1CH0/ADP0/ACMP1+

PTA4/ACMP1O/BKGD/MS

PTA5/IRQ/TPM1CLK/RESET

IRQ

pins not available on 28-pin packages

(RTC)

ANALOG COMPARATOR

(ACMP2)

PTA7/TPM2CH2/ADP9

PTA6/TPM1CH2/ADP8

PTC3/TPM3CH3

PTC2/TPM3CH2

PTC1/TPM3CH1

PTC0/TPM3CH0

pins not available on 28-pin, 32-pin, or 44-pin packages

BKGD/MS

IRQ

EXTAL

XTAL

SCL

SDA

MISO

MOSI

SPSCK

SS

RxD1

TxD1

DEBUG MODULE (DBG)

ACMP1O

ACMP1–

ACMP1+

ACMP2O

ACMP2–

ACMP2+

ADP9-ADP0

TPM1CLK

TPM1CH2-TPM1CH0

3-CHANNEL TIMER/PWM

MODULE (TPM1)

KEYBOARD INTERRUPT

MODULE (KBI2)

KBI2P7-KBI2P0

Notes: When PTA5 is configured as RESET, pin becomes bi-directional with output being open-drain drive containing an internal pull-up device.

When PTA4 is configured as BKGD, pin becomes bi-directional.

PTD7/KBI2P7

PTD6/KBI2P6

PTD5/KBI2P5

PTD4/KBI2P4

PTD3/KBI2P3

PTD2/KBI2P2

PTD1/KBI2P1

PTD0/KBI2P0

PTE7/TPM3CLK

PTE6

PTE5

PTE4

PTE3/SS

PTE2/MISO

PTE1/MOSI

PTE0/TPM2CLK/SPSCK

pins not available on 28-pin or 32-pin packages

RxD2

TxD2

INTERFACE MODULE(SCI2)

SERIAL COMMUNICATIONS

INTERFACE MODULE(SCI1)

SERIAL COMMUNICATIONS

SERIAL PERIPHERAL

INTERFACE MODULE(SPI)

TPM2CLK

TPM2CH2-TPM2CH0

3-CHANNEL TIMER/PWM

MODULE (TPM2)

TPM3CLK

TPM3CH5-TPM3CH0

6-CHANNEL TIMER/PWM

MODULE (TPM3)

KEYBOARD INTERRUPT

MODULE (KBI1)

KBI1P7-KBI1P0

The 48-pin package is the only package with the option of having the SPI pins (SS, MISO, MOSI, and SPSCK) available on PTE3-0 pins.