EZ80F920120MOD Zilog, EZ80F920120MOD Datasheet - Page 176

• Manufacturer Part Number: EZ80F920120MOD
• Description: MODULE EZ80F92 512K 20MHZ
• Manufacturer: Zilog

Specifications of EZ80F920120MOD

• Module/board Type: Development Module
• Processor Series: EZ80F92x
• Core: eZ80
• Data Bus Width: 8 bit
• Program Memory Type: Flash
• Program Memory Size: 1 MB
• Interface Type: Cable
• Maximum Clock Frequency: 20 MHz
• Operating Supply Voltage: 0 V to 3.3 V
• Maximum Operating Temperature: + 70 C
• Mounting Style: SMD/SMT
• Package / Case: LQFP
• Development Tools By Supplier: eZ80F920200ZCOG
• Minimum Operating Temperature: 0 C
• For Use With/related Products: eZ80F92
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 269-3157; EZ80F920120MOD

PS015308-0404
ZDI-Supported Protocol
ZDI Clock and Data Conventions
Recommended ZDI Clock vs. System Clock Frequency lists the recommended frequen-
cies of the ZDI clock in relation to the system clock.
Table 93. Recommended ZDI Clock vs. System Clock Frequency
ZDI supports a bidirectional serial protocol. The protocol defines any device that sends
data as the transmitter and any receiving device as the receiver. The device controlling the
transfer is the master and the device being controlled is the slave. The master always ini-
tiates the data transfers and provides the clock for both receive and transmit operations.
The ZDI block on the eZ80F92 device is considered a slave in all data transfers.
Figure 37 illustrates the schematic for building a connector on a target board. This connec-
tor allows the user to connect directly to the ZPAK II debugger using a six-pin header.
Figure 37.Schematic For Building a Target Board ZPAK II Connector
The two pins used for communication with the ZDI block are the ZDI Clock pin (ZCL)
and the ZDI Data pin (ZDA). On the eZ80F92 device, the ZCL pin is shared with the TCK
pin while the ZDA pin is shared with the TDI pin. The ZCL and ZDA pin functions are
System Clock
Frequency
3–10 Mhz
8–16 Mhz
12–24 Mhz
20–50 Mhz
eZ80L92
TCK (ZCL)
TDI (ZDA)
330 KΩ
ZDI Clock
Frequency
1 Mhz
2 Mhz
4 Mhz
8 Mhz
6-Pin Target Connector
P R E L I M I N A R Y
330 KΩ
2
4
6
1
3
5
(Target V
TV
Product Specification
DD
DD
ZiLOG Debug Interface
eZ80F92/eZ80F93
)
164