EZ80L925048MOD Zilog, EZ80L925048MOD Datasheet - Page 16

• Manufacturer Part Number: EZ80L925048MOD
• Description: IC WEBSERVER 48MHZ 1MB MOD
• Manufacturer: Zilog

Specifications of EZ80L925048MOD

• Module/board Type: Development Module
• For Use With/related Products: eZ80L92
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 269-3166; EZ80L925048MOD

PS017005-0903
Pin #
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
Notes: *External capacitive loads on RD, WR, IORQ, MREQ, D0–D7 and A0–A23 should be below 10 pF to satisfy
timing requirements for the CPU.
All unused inputs should be pulled to either V
consumption and to reduce noise sensitivity.
To prevent EMI, the EZ80CLK output can be deactivated via software in the eZ80F91 Peripheral Power-Down
Register.
All inputs are CMOS level 3.3 V (5 V tolerant), except where otherwise noted.
Symbol
TDO
TDI/ZDA
GND
TRIGOUT
TCK/ZCL
TMS
RTC_V
EZ80CLK
SCL
GND
SDA
GND
FlashWE
GND
CS3
DIS_IRDA
RESET
WAIT
V
DD
Table 2. eZ80L92 Module I/O Connector Pin Identification* (Continued)
DD
Pull
Up/Down
PU 10 KΩ Input
PU 10 KΩ Input
PU 10 KΩ Input
PU 4k7
PU 4k7
PU 10 KΩ Input
PU 10 KΩ Input
PU 2k2
PU 2k2
Signal
Direction
Output
Output
Output
Bidirectional
Bidirectional
Output
Bidirectional
Input
P R E L I M I N A R Y
DD
or GND, depending on their inactive levels, to reduce power
Comments
JTAG data output pin.
JTAG data input pin.
V
Active High trigger event indicator.
JTAG clock. High on reset enables ZDI mode; Low
on reset enables OCI debug.
JTAG Test Mode Select.
RTC supply from GoldCap (or external battery).
48 MHz synchronous CPU clock.
I
V
I
V
Low enables Write to onboard Flash memory. If this
pin is unconnected, the Flash memory is write-
protected.
V
Used on module for CS8900 EMAC.
Low disables onboard IRDA transceiver to use PD0/
PD1 UART pins externally.
Reset output from Module or push-button reset.
Driving the WAIT pin Low forces the eZ80
provide additional clock cycles for an external
peripheral or external memory to complete its Read
or Write operation.
3.3 V supply input pin.
2
2
SS
SS
SS
SS
C Bus Clock.
C Bus Data.
/Ground (0 V).
/Ground (0 V).
/Ground (0 V).
/Ground (0 V).
eZ80L92 Module Product Specification
eZ80L925048MOD
Pin Description
®
CPU to
10