User's Manual

Table Of Contents

System Overview and Functional Block Descriptions

1320x-QE128EVB Reference Manual, Rev. 0.0

3-2 Freescale Semiconductor

3.2 System Overview

The 1320x-QE128EVB combines the Freescale MC1320x Family of IEEE 802.15.4 transceivers to the

9S08 version of QE128 Family of Microcontrollers. The MC9S08QE128 is a natural extension to existing

9S08-based platforms in that it uses the same CPU core, but extends the FLASH memory space to 128

kbytes. The standard 9S08GT/GB maximum FLASH space is 60 kbytes, while the MC9S08QE128

expands the code space to a full 128 kbytes.

The 1320x-QE128EVB provides the MCU as a daughter card and adds the required 802.15.4 transceiver,

RF circuitry, and interface elements.

NOTE

Although the 1320x-QE128EVB provides the MCU as a pre-fabricated

daughter card, the designer must use and reference the MCU by its device

designation (MC9S08QE128, MC9S08QE96, and MC9S08QE64). The

MC9S08QE128 Series Data Sheet (Document number: MC9S08QE128)

and MC9S08QE128 Reference Manual (Document number:

MC9S08QE128RM) are available on the Freescale web site

(www.freescale.com) and links are provided on the Freescale ZigBee/IEEE

802.15.4 page (www.freescale.com/zigbee).

3.2.1 MC9S08QE128 MCU Module

The 1320x-QE128EVB provides the MC9S08QE128 8-bit HCS08 core microcontroller unit via a 64-pin

daughter card, designated as MC9S08QE128_Daughter_card. Figure 3-2 shows the block diagram of the

structure of the MC9S08QE128 Series MCU.

The MC9S08QE128 device provides a 50MHz 9S08 CPU core, 8 Kbytes of RAM, 131 Kbytes of on-board

ROM, and internal clock source. In addition to the CPU core and memory, on-board peripherals include

the following:

• Two dedicated UART modules

• Keyboard interface capability.

• Up to 24 channels of 12-bit analog-to-digital converters (ADCs) with output formatted in 12-, 10-

or 8-bit right-justified channels

• General Purpose I/O available ports.

• Two Inter-integrated Circuit Interface (I2C) modules

• Two Synchronous Peripheral Interface (SPI) modules

• Real Time Clock (RTC) counter

• Two analog comparator (ACMP) modules