EZ80190AZ050EC00TR Zilog, EZ80190AZ050EC00TR Datasheet - Page 62
EZ80190AZ050EC00TR
Manufacturer Part Number
EZ80190AZ050EC00TR
Description
IC EZ80 ACCLAIM 50MHZ 100LQFP
Manufacturer
Zilog
Datasheet
1.EZ80190AZ050SG.pdf
(221 pages)
Specifications of EZ80190AZ050EC00TR
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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Table 17. Register Values for Memory Chip Select Example
PS006614-1208
Chip
Select
CS0
CS1
CSx_CTL[3]
CSx_EN
1
1
CS0_LBR = CS1_LBR = 00h
CSx_CTL[4]
CS2_UBR = CFh
CS3_UBR = FFh
CS0_UBR = 7Fh
CSx_IO
CS3_LBR = D0h
CS2_LBR = A0h
CS1_LBR = 9Fh
0
0
Figure 8. Memory Chip Select Example
CSx_LBR CSx_UBR Description
00h
80h
2 MB Adddress Space
3 MB Address Space
3 MB Address Space
8 MB Address Space
CS3 Active
CS2 Active
CS1 Active
CS0 Active
7Fh
9Fh
CS0 is enabled as a Memory Chip Select.
Valid addresses range from 000000h to
7FFFFFh.
CS1 is enabled as a Memory Chip Select.
Valid addresses range from 800000h to
9FFFFFh.
Memory
Location
FFFFFFh
CFFFFFh
A00000h
9FFFFFh
800000h
7FFFFFh
D00000h
000000h
Chip Selects and Wait States
Product Specification
eZ80190
52
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