MCHC908JW32FAE Freescale Semiconductor, MCHC908JW32FAE Datasheet - Page 163

• Manufacturer Part Number: MCHC908JW32FAE
• Description: IC MCU 32K FLASH 8MHZ 48-LQFP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MCHC908JW32FAE

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SPI, USB
• Peripherals: LED, LVD, POR, PWM
• Number Of I /o: 29
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 3.5 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 48-LQFP
• Controller Family/series: HC08
• No. Of I/o's: 48
• Ram Memory Size: 1KB
• Cpu Speed: 8MHz
• No. Of Timers: 1
• Embedded Interface Type: SPI
• Rohs Compliant: Yes
• Processor Series: HC08JW
• Core: HC08
• Data Bus Width: 8 bit
• Data Ram Size: 1 KB
• Interface Type: SPI, USB
• Number Of Programmable I/os: 29
• Number Of Timers: 2
• Maximum Operating Temperature: + 70 C
• Mounting Style: SMD/SMT
• Development Tools By Supplier: FSICEBASE, DEMO908GZ60E, M68EML08GZE, KITUSBSPIDGLEVME, KITUSBSPIEVME, KIT33810EKEVME
• Minimum Operating Temperature: 0 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: Details

Chapter 12
PS2 Clock Generator (PS2CLK)
12.1 Introduction
This module provides the capability to generate PS2 clock.
12.2 Functional Description
Figure 12-1
PS2EN bit. When the module is enabled, the output port becomes an open-drain output. A two phase
clock is created by the prescaler block, one is driving the clock generator unit and the other is driving the
interrupt generator. The clock generator drives the output port directly if CLKEN bit is set, while the
interrupt generator enables CPU interrupt at the different clock phase. The CPU interrupt can be masked
by clearing the PS2IEN bit. The waveform diagram is shown in
When the module is enabled, the output port status is continuous monitored and stored in PSTATUS flag.
Freescale Semiconductor
PTE2/PS2CLK/D+
shows the block diagram for the PS2 clock generator. The module is enabled by setting
Figure 12-1. PS2 Clock Generator Block Diagram
MC68HC908JW32 Data Sheet, Rev. 6
PSTATUS
CSEL[1:0]
PS2EN
PRE
GENERATOR
CLOCK
CLKEN
PRESCALER
Figure
PS2IEN
PS2IF
12-2.
GENERATOR
INTERRUPT
Bus Clock
CPU
Interrupt
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