EZ80190AZ050SC00TR Zilog, EZ80190AZ050SC00TR Datasheet - Page 161

• Manufacturer Part Number: EZ80190AZ050SC00TR
• Description: IC EZ80 ACCLAIM 50MHZ 100LQFP
• Manufacturer: Zilog

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

ZDI Write Operations
PS006614-1208
ZCL
ZDA
ZDI Single-Byte Write
ZDI Block Write
address
lsb of
ZDI
A0
For single-byte write operations, the address and write-control bit are first written to the
ZDI block. Following the 1-bit byte separator, the data is shifted into the ZDI block on the
next 8 rising edges of ZCL. The master terminates activity after 8 clock cycles.
displays the timing for ZDI single-byte WRITE operations.
The block WRITE operation is initiated in the same manner as the single-byte write oper-
ation. After the first data byte is transferred, the ZDI master continues to transmit addi-
tional bytes of data to the ZDI slave on the eZ80190 device. After the receipt of each byte
of data the ZDI register address increments by one. If the ZDI register address reaches the
end of the Write Only ZDI register address space (
Figure 32
7
Write
8
on page 152 displays the timing for ZDI block WRITE operations.
separator
1-bit data
1
9
DATA
msb
D7
Figure 31. ZDI Single-Byte Data Write Timing
of
1
D6
2
D5
3
ZDI Data Byte
D4
4
D3
5
30h
), the address stops incrementing.
D2
6
D1
7
Product Specification
DATA
D0
lsb
of
8
Zilog Debug Interface
START signal
end of data
or new ZDI
1
9
Figure 31
eZ80190
151