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參數(shù)資料
| 型號(hào)： | AVRPORTC |
| 廠商： | Atmel Corp. |
| 英文描述： | 8-bit Digital Output Port(8位數(shù)字輸出端口) |
| 中文描述： | 8位數(shù)字輸出端口（8位數(shù)字輸出端口） |
| 文件頁數(shù)： | 1/5頁 |
| 文件大?。?/td> | 68K |
| 代理商： | AVRPORTC |
1
Features
8-bit Digital Output Port
High-order Address Port for External Data SRAM
Description
The AVRPORTC module is an 8-bit, general purpose output port. It is also used to
output the high-order address byte when accessing external data memory.
Specific Peripheral Information
The AVRPORTC peripheral is approximately 260 gates. It is designed and described
in this datasheet to perform functionally identical to PORT C in the AVR
ATmega103
datasheet (literature #0945B). Any differences are listed in the
“
Modifications to
Standard Product
”
section. The peripheral was designed to function like the standard
product to enable smoother transition for customers who began development and
production with an AVR standard product and now wish to integrate their design into
an ASIC. If the configuration of AVRPORTC does not satisfy customer requirements,
it can be modified to different specifications.
This datasheet is described with a tri-state databus configuration, which is the same
configuration as the AVR standard products. If desired, the AVRPORTC peripheral
can be provided in a split databus configuration.
Figure 1.
Physical Connections
cp2
ireset
sre
ale
adr[5:0]
iore
iowe
dbus[7:0]
AVR
PORTC
Clock
and
Control
I/O Bus
Instruction
Bus
xadr[15:8]
Port
Connection
topadc[7:0]
Gate Array/
Embedded
Array
ASIC Macrocell
AVRPORTC
Preliminary
Rev. 1276A
–
07/00
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