EZ80F920120MOD Zilog, EZ80F920120MOD Datasheet - Page 209

• 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

Figure 48.eZ80F93 Flash Memory Arrangement
PS015308-0404
16-KB blocks
Flash Memory Arrangement in the eZ80F93
Flash Memory Overview
3
2
1
0
4
The eZ80F92 features 64 KB (65,536 bytes) of nonvolative Flash memory with Read/
Write/Erase capability. The main Flash memory array is arranged in 64 pages with 8 rows
per page and 128 bytes per row. In addition to the main Flash memory there are two sepa-
rately addressable rows which comprise a 256 byte Information Page.
The 64 KB of main storage can be protected in four 16 KB blocks. Protecting a 16 KB
block prevents Write or Erase operations. The Flash memory arrangement is illustrated in
Figure 48.
Flash can be programmed a single byte at a time or in bursts of up to 128 bytes (full row).
Write operations may be accomplished using either memory or I/O instructions. Reading
Flash memory can be accomplished via internal memory access or through the ZDI and
OCI interfaces. The Flash memory controller contains a frequency divider, Flash register
interface, address generator, and the Flash control state machine. A simplified block dia-
gram of the Flash controller is illustrated in Figure 49.
1-KB pages
per block
16
E
D
C
B
A
F
9
8
7
6
5
4
3
2
1
0
P R E L I M I N A R Y
128-byte rows
per page
8
7
6
5
4
3
2
1
0
127 126
single-byte columns
Product Specification
per row
128
eZ80F92/eZ80F93
1
Flash Memory
0
197