參數(shù)資料
型號(hào): MB90P634APF
元件分類: 微控制器/微處理器
英文描述: 16-BIT, OTPROM, 16 MHz, MICROCONTROLLER, PQFP100
封裝: PLASTIC, QFP-100
文件頁(yè)數(shù): 65/107頁(yè)
文件大小: 1599K
代理商: MB90P634APF
60
MB90630A Series
13. External Bus Pin Control Circuit
The external bus pin control circuit controls the external bus pins required to extend the CPU’s address/data
bus outside the device.
(1) Register Configuration
(2) Block Diagram
0000A6H
0000A5H
15
14
13
12
11
10
9
ICR1
ICR0
HMR1
HMR0
LMR1
LMR0
8
(—)
(W)
(—)
(W)
(0)
(1)
(—)
(0)
(—)
Address:
ARSR
7654321
E23
E22
E21
E20
E19
E18
E17
E16
0
(W)
(0)
Address:
HACR
Auto-ready function selection register
External address output control register
Read/write
Initial value
Read/write
Initial value
0000A7H
15
14
13
12
11
10
9
CKE
RYE
HDE
ICBS
HMBS
WRE
LMBS
8
(W)
(—)
(0)
(1/0)
(—)
(0)
Address:
EPCR
Bus control signal selection register
Read/write
Initial value
bit
P3
P2
P1
P0
Access control
P0
Address control
Data control
P0 data
P0 direction
P3
RB
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