參數(shù)資料
型號: PSD311R
英文描述: Field Programmable Microcontroller Peripherals(可編程邏輯,無SRAM,19個可編程I/O,通用PLD有12個輸入)
中文描述: 現(xiàn)場可編程微控制器外圍設(shè)備(可編程邏輯,無的SRAM,19余個可編程輸入/輸出,通用PLD的有12個輸入)
文件頁數(shù): 19/127頁
文件大?。?/td> 682K
代理商: PSD311R
PSD3XX Famly
2-19
NOTES:
19. When the data bus width is 16, Port B registers can only be accessed if the BHE
signal is low.
20. I/O Ports A and B are still byte-addressable, as shown in Table 6. For I/O Port B register
access, BHE must be low.
Register Name
Word Size Access of the I/OPort Registers
Ofset fromthe CSIOPORT
Pin Register of Ports B and A
Direction Register of Ports B and A
Data Register of Ports B and A
+ 2 (accessible during read operation only)
+ 4
+ 6
Table 7.
I/OPort
Addresses in a
16-bit Data Bus
Mode
19,20
(PSD30X)
Figure 6.
Port B Pin
Structure
READ PIN
READ DATA
PORT B PIN
CMOS/OD
(18)
OUT
WRITE DATA
CK
DR
DFF
ENABLE
MUX
DI
CSI
CONTROL
DIR
FF
D
CK
R
WRITE DIR
RESET
READ DIR
I
N
T
E
R
N
A
L
I
N
T
E
R
N
A
L
C
S
O
U
T
D
A
T
A
B
U
S
B
U
S
C
S
0
7
D
8
D
1
5
Register Name
Byte Size Access of the I/OPort Registers
Ofset fromthe CSIOPORT
+ 2 (accessible during read operation only)
Pin Register of Port A
Direction Register of Port A
+ 4
Data Register of Port A
+ 6
Pin Register of Port B
+ 3 (accessible during read operation only)
Direction Register of Port B
+ 5
Data Register of Port B
+ 7
Page Register
+18
Table 6.
I/OPort
Addresses in an
8-bit Data Bus
Mode
NOTE:
18. CMOS/OD determines whether the output is open drain or CMOS.
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