Z8F4822AR020SG Datasheet, PDF (25/323 Pages) Zilog, Inc. – High Performance 8-Bit Microcontrollers

Z8 Encore! XP^® F64xx Series
Product Specification
5
I²C
The I²C controller makes the Z8 Encore! XP F64xx Series compatible with the I²C proto-
col. The I²C controller consists of two bidirectional bus lines, a serial data (SDA) line and
a serial clock (SCL) line.
Serial Peripheral Interface
The serial peripheral interface allows the Z8 Encore! XP F64xx Series to exchange data
between other peripheral devices such as EEPROMs, A/D converters and ISDN devices.
The SPI is a full-duplex, synchronous, character-oriented channel that supports a four-wire
interface.
Timers
Up to four 16-bit reloadable timers can be used for timing/counting events or for motor
control operations. These timers provide a 16-bit programmable reload counter and oper-
ate in ONE-SHOT, CONTINUOUS, GATED, CAPTURE, COMPARE, CAPTURE AND
COMPARE and PWM modes. Only 3 timers (Timer 0–2) are available in the 44-pin pack-
age.
Interrupt Controller
The Z8 Encore! XP F64xx Series products support up to 24 interrupts. These interrupts
consist of 12 internal and 12 GPIO pins. The interrupts have 3 levels of programmable
interrupt priority.
Reset Controller
The Z8 Encore! XP F64xx Series can be reset using the RESET pin, Power-On Reset,
Watchdog Timer, STOP Mode exit, or Voltage Brown-Out (VBO) warning signal.
On-Chip Debugger
The Z8 Encore! XP F64xx Series features an integrated On-Chip Debugger. The OCD
provides a rich set of debugging capabilities, such as reading and writing registers, pro-
gramming the Flash, setting breakpoints and executing code. A single-pin interface pro-
vides communication to the OCD.
PS019924-0113
PRELIMINARY
CPU and Peripheral Overview