EZ80190AZ050SC00TR Zilog, EZ80190AZ050SC00TR Datasheet - Page 162
EZ80190AZ050SC00TR
Manufacturer Part Number
EZ80190AZ050SC00TR
Description
IC EZ80 ACCLAIM 50MHZ 100LQFP
Manufacturer
Zilog
Datasheet
1.EZ80190AZ050SG.pdf
(221 pages)
Specifications of EZ80190AZ050SC00TR
Processor Type
eZ80
Features
High Speed, Single-Cycle Instruction-Fetch
Speed
50MHz
Voltage
3.3V
Mounting Type
Surface Mount
Package / Case
100-LQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
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ZDI Read Operations
PS006614-1208
ZCL
ZDA
ZCL
ZDA
ZDI Single-Byte READ
address
address
lsb of
lsb of
ZDI
A0
ZDI
Single-byte read operations are initiated in the same manner as single-byte write opera-
tions, with the exception that the R/W bit of the ZDI register address is set to 1. Upon
receipt of a slave address with the R/W bit set to 1, the eZ80190 device’s ZDI block loads
the selected data into the shifter at the beginning of the first cycle following the 1-bit data
separator. The msb is shifted out first.
WRITE operations.
A0
7
7
Read
Write
8
8
separator
1-bit data
separator
1-bit data
1
1
9
9
DATA
byte 1
DATA
msb
msb
D7
Figure 33. ZDI Single-Byte Data Read Timing
D7
of
1
of
1
Figure 32. ZDI Block Data Write Timing
D6
D6
2
2
D5
3
Figure 33
ZDI Data Byte
ZDI Data Bytes
D4
4
D1
7
displays the timing for ZDI single-byte
DATA
byte 1
D3
5
D0
lsb
8
of
1-bit data
separator
D2
6
9
1
DATA
byte 2
D1
7
msb
D7
Product Specification
of
1
DATA
D0
lsb
of
8
Zilog Debug Interface
D6
2
START signal
End of data
or new ZDI
1
9
eZ80190
152
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