参数资料
型号: IA88C00-PLC68I-R
厂商: Innovasic Semiconductor
英文描述: Microcontroller
中文描述: 微控制器
文件页数: 13/80页
文件大小: 707K
代理商: IA88C00-PLC68I-R
IA88C00
Microcontroller
Data Sheet
As of Production Version -01
Copyright
2005 ENG 21 0 050519-00 www.Innovasic
Innovasic.com
Innovasic Semiconductor
Page 13 of 80 1.888.824.4184
Architecture
IA88C00 maintains program model compatibility with the Super8 architecture, including 268 general
purpose registers and 57 registers for control and mode functions.
The instruction set, is also fully binary compatible supporting all instructions, including multiply and
divide instructions and provisions for BCD operations.
The peripheral set maintains register/ program model compatibility. Robust serial communications are
provided by an on-board UART. Counter/timers are provided for time-sensitive/control loop
applications. A watchdog timer is provided for processor sanity.
Pin Descriptions
/AS Address Strobe
(
output, active Low
)
The rising edge of this output indicates that address, R/W, and DM (when
appropriate) are valid.
The leading edge of this signal indicates that data is valid during a write cycle.
The trailing edge of this signal is used to latch data into the IA88C00 during a
read cycle.
Input/Output Ports configured under program control. Specific functions include:
/DS Data Strobe
(
output, active Low
P00-P07, P10-P17,
P20-P27, P30-P37,
P40-P47, Port I/O
Lines
(
input/output
)
Port 1
serves as the multiplexed address/data port. It serves as the data bus
de-multiplexed mode, and
Port 0
pins can be used as additional address
lines or general purpose I/O.
Ports 2 and 3
provide support for interrupts, the UART and the timers.
Alternatively, they can be programmed as general purpose I/O.
Port 4
is used for general I/O or as the lower address byte in de-mux mode.
/RESET
(
input,
active Low
)
R/W Read/Write
(
output
)
Reset input. Reset vector is address 0020H.
When high, the current bus operation is a read. When low, the current bus
operation is a write.
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