Z8F640x/Z8F480x/Z8F320x/Z8F240x/Z8F160x
Z8 Encore!
®
5
Serial Peripheral Interface
The serial peripheral interface (SPI) allows the Z8 Encore!
®
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 (Timers 0-2) are available in the 40- and 44-pin packages.
Interrupt Controller
The Z8F640x family products support up to 24 interrupts. These interrupts consist of 12
internal and 12 general-purpose I/O pins. The interrupts have 3 levels of programmable
interrupt priority.
Reset Controller
The Z8F640x family can be reset using the RESET pin, power-on reset, Watch-Dog Timer
(WDT), Stop mode exit, or Voltage Brown-Out (VBO) warning signal.
On-Chip Debugger
The Z8 Encore!
®
features an integrated On-Chip Debugger (OCD). The OCD provides a
rich set of debugging capabilities, such as reading and writing registers, programming the
Flash, setting breakpoints and executing code. A single-pin interface provides communi-
cation to the OCD.
DMA Controller
The Z8F640x family features three channels of DMA. Two of the channels are for register
RAM to and from I/O operations. The third channel automatically controls the transfer of
data from the ADC to the memory.
PS017610-0404
Introduction
ZILOG [ ZILOG, INC. ]
