Z8F082ASH020SC Datasheet, PDF (28/244 Pages) Zilog, Inc. – Z8 Encore XP-R F08xA Series with eXtended Peripherals

Z8 Encore! XP^® F08xA Series
Product Specification
10
Signal Mnemonic
I/O
Transimpedance Amplifier
AMPINP/AMPINN
I
AMPOUT
O
Oscillators
XIN
I
XOUT
O
Clock Input
CLKIN
I
LED Drivers
LED
O
On-Chip Debugger
DBG
I/O
Caution:
Reset
RESET
I/O
Power Supply
V_DD
I
AV_DD
I
Table 3. Signal Descriptions (Continued)
Description
Transimpedance amplifier inputs. If enabled, these pins drive the positive
and negative amplifier inputs respectively.
Transimpedance amplifier output. If enabled, this pin is driven by the on-
chip transimpedance amplifier.
External Crystal Input. This is the input pin to the crystal oscillator. A
crystal can be connected between it and the XOUT pin to form the
oscillator. In addition, this pin is used with external RC networks or external
clock drivers to provide the system clock.
External Crystal Output. This pin is the output of the crystal oscillator. A
crystal can be connected between it and the XIN pin to form the oscillator.
Clock Input Signal. This pin may be used to input a TTL-level signal to be
used as the system clock.
Direct LED drive capability. All port C pins have the capability to drive an
LED without any other external components. These pins have
programmable drive strengths set by the GPIO block.
Debug. This signal is the control and data input and output to and from the
On-Chip Debugger.
The DBG pin is open-drain and requires an external pull-up resistor to
ensure proper operation.
RESET. Generates a Reset when asserted (driven Low). Also serves as a
reset indicator; the Z8 Encore! XP^® forces this pin low when in reset. This
pin is open-drain and features an enabled internal pull-up resistor.
Digital Power Supply.
Analog Power Supply.
PS024705-0405
PRELIMINARY
Pin Description