EZ80L92AZ050SG Zilog, EZ80L92AZ050SG Datasheet - Page 84

• Manufacturer Part Number: EZ80L92AZ050SG
• Description: IC WEBSERVER 50MHZ 100LQFP
• Manufacturer: Zilog

Specifications of EZ80L92AZ050SG

• Processor Type: eZ80
• Features: High Speed, Single-Cycle Instruction-Fetch
• Speed: 50MHz
• Voltage: 3.3V
• Mounting Type: Surface Mount
• Package / Case: 100-LQFP
• Processor Series: EZ80L92x
• Core: eZ80
• Data Bus Width: 8 bit
• Program Memory Size: 64 KB
• Interface Type: I2C, SPI, UART
• Maximum Clock Frequency: 50 MHz
• Number Of Programmable I/os: 24
• Number Of Timers: 6
• Operating Supply Voltage: 3 V to 3.6 V
• Maximum Operating Temperature: + 70 C
• Mounting Style: SMD/SMT
• Development Tools By Supplier: eZ80L920210ZCO
• Minimum Operating Temperature: 0 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 269-3878; EZ80L92AZ050SG

PS013014-0107
of the timer is achieved by loading
0000h
0000h
The time-out period of the PRT is returned by the following equation:
To calculate the time-out period with the above equation when using an initial value of
0000h
Minimum time-out duration is 4 times longer than the input clock period and is generated
by setting the clock divider ratio to 1:4 and the reload value to
duration is 2
setting the clock divider ratio to 1:256 and the reload value to
SINGLE PASS Mode
In SINGLE PASS mode, when the end-of-count value,
the timer is disabled, and the PRT_EN bit resets to 0. To restart the timer, the CPU must
reenable the timer by setting the PRT_EN bit to 1. An example of a PRT operating in
SINGLE PASS mode is illustrated in
in
PRT Time-Out Period
t
t
CNTH
CNTL
IOWRN
CLKEN
Table
CLK
IRQ
7:0]
7:0]
, because the timer first rolls over to
.
, enter a reload value of 65536 (
29.
24
(16,777,216) times longer than the input clock period and is generated by
Figure 19. PRT SINGLE PASS Mode Operation Example
0
=
4
Clock Divider Ratio x Reload Value
System Clock Frequency
0001h
3
Figure
FFFFh
. Maximum duration is achieved by loading
FFFFh
19. Timer register information is indicated
+ 1).
0
2
and then continues counting down to
0000h
1
0001h
0000h
, is reached, counting halts,
Programmable Reload Timers
Product Specification
. Maximum time-out
.
0
eZ80L92 MCU
78