Z8F16800144ZCOG Zilog, Z8F16800144ZCOG Datasheet - Page 300

• Manufacturer Part Number: Z8F16800144ZCOG
• Description: KIT DEV FOR Z8F642 MCU 44 PIN
• Manufacturer: Zilog
• Series: Z8 Encore!®r
• Type: MCUr

Specifications of Z8F16800144ZCOG

• Contents: Hardware, Software and Documentation
• For Use With/related Products: Z8F642
• For Use With: 269-4661 - KIT ACC ETHERNET SMART CABLE
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 269-4678

Operation
PS025011-1010
Caution:
On-Chip Debugger Interface
The On-Chip Debugger (OCD) uses the DBG pin for communication with an external
host. This one-pin interface is a bi-directional open-drain interface that transmits and
receives data. Data transmission is half-duplex, in that transmit and receive cannot occur
simultaneously. The serial data on the DBG pin is sent using the standard asynchronous
data format defined in RS-232. This pin interfaces the Z8 Encore! XP F1680 Series device
to the serial port of a host PC using minimal external hardware.
plays the connections between the debug connector and the Z8 Encore! microcontroller.
Two different methods for connecting the DBG pin to an RS-232 interface are depicted in
Figure 57
1. For operation of the Z8 Encore! XP F1680 Series device, all power pins (V
2. The Serial Smart Cable (SSC) does not work with the F1680 device series because
AV
properly grounded. The DBG pin should always be connected to V
external pull-up resistor.
it does not fully support the silicon OCD. During external clock switching, the
OCD sends a break command to the SSC. This causes the SSC to disconnect from
the target and terminate the debug session. You must then reconnect to the target
again. Use the Opto-Isolated USB, USB, or Ethernet Smart Cables when using in
conjunction with ZDS II.
DD
on page 287 and
) must be supplied with power, and all ground pins (V
Figure 56.Target OCD Connector Interface
Figure 58
P R E L I M I N A R Y
on page
287.
Z8 Encore! XP
Figure 56
Product Specification
SS
and AV
®
On-Chip Debugger
DD
on page 286 dis-
F1680 Series
SS
through an
) must be
DD
and
286