參數(shù)資料
型號(hào): PSD4235G2-90UT
廠商: STMICROELECTRONICS
元件分類(lèi): 微控制器/微處理器
英文描述: 256K X 16 FLASH, 52 I/O, PIA-GENERAL PURPOSE, PQFP80
封裝: PLASTIC, TQFP-80
文件頁(yè)數(shù): 59/100頁(yè)
文件大?。?/td> 933K
代理商: PSD4235G2-90UT
61/100
PSD4235G2
Table 40. Port Operating Mode Settings
Note: 1. N/A = Not Applicable
2. The direction of the Port A,B,C, and F pins are controlled by the Direction Register ORed with the individual output enable product
term (.oe) from the CPLD AND Array.
3. Any of these three methods enables the JTAG pins on Port E.
4. Control Register setting is not applicable to Ports A, B and C.
Table 41. I/O Port Latched Address Output Assignments
Note: 1. N/A = Not Applicable.
Mode
Defined in PSDsoft
Express
Control
Register
Setting
Direction
Register
Setting
VM Register
Setting
JTAG Enable
MCU I/O
Declare pins only
0 (Note 4)
1 = output,
0 = input
(Note 2)
N/A
PLD I/O
Declare pins and
Logic equations
N/A
(Note 2)
N/A
Data Port (Port F, G)
Selected for MCU
with non-multiplexed
bus
N/A
Address Out
(Port E, F, G)
Declare pins only
1
1 (Note 2)
N/A
Address In
(Port A, B, C, D, F)
Declare pins or Logic
equation for Input
Macrocells
N/A
Peripheral I/O
(Port F)
Logic equations
(PSEL0 and PSEL1)
N/A
PIO Bit = 1
N/A
JTAG ISP 3
Declare pins only
N/A
JTAG_Enable
MCU Reset Mode
Specific pin logic
level
N/A
MCU
Port E
(PE3-PE0)
Port E
(PE7-PE4)
Port F
(PF3-PF0)
Port F
(PF7-PF4)
Port G
(PG3-PG0)
Port G
(PG7-PG4)
80C51XA
N/A1
Address
a7-a4
N/A
Address
a7-a4
Address
a11-a8
Address
a15-a12
All Other
MCU with Multiplexed Bus
Address
a3-a0
Address
a7-a4
Address
a3-a0
Address
a7-a4
Address
a11-a8
Address
a15-a12
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