EZ80F920120MOD Zilog, EZ80F920120MOD Datasheet - Page 174

• 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
Bus Clock Speed
The I
To ensure correct detection of START and STOP conditions on the bus, the I
ple the I
bus. The sampling frequency should therefore be at least 1 MHz (4 MHz in FAST mode) to
guarantee correct operation with other bus masters.
The I
the value in the I2C_CCR bits 2 to 0. The bus clock speed generated by the I
TER mode is determined by the frequency of the input clock and the values in
I2C_CCR[2:0] and I2C_CCR[6:3].
I
The I2C_SRR register is a Write Only register. Writing any value to this register performs
a software reset of the I
Table 92. I
Bit
Reset
CPU Access
Note: W = Write Only.
Bit
Position
[7:0]
SRR
2
C Software Reset Register
2
2
C bus is defined for bus clock speeds up to 100 KBPS (400 KBPS in FAST mode).
C sampling frequency is determined by the frequency of the CPU system clock and
2
C bus at least ten times faster than the bus clock speed of the fastest master on the
2
C Software Reset Register (I2C_SRR = 00CDh)
Value Description
00h–
FFh
2
C module. See I
X
W
Writing any value to this register performs a software reset of
the I
P R E L I M I N A R Y
7
2
X
W
C module.
6
2
C Software Reset Register (I2C_SRR = 00CDh).
X
W
5
X
W
4
X
W
3
Product Specification
X
W
2
I2C Serial I/O Interface
eZ80F92/eZ80F93
X
W
2
2
1
C must sam-
C in MAS-
X
W
0
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