參數(shù)資料
型號: UPSD3254B-24T1
廠商: 意法半導(dǎo)體
英文描述: Flash Programmable System Devices with 8032 Microcontroller Core and 256Kbit SRAM
中文描述: 閃存可編程系統(tǒng)設(shè)備與8032微控制器核心和256Kbit的SRAM
文件頁數(shù): 129/176頁
文件大小: 1214K
代理商: UPSD3254B-24T1
129/176
μPSD325X DEVICES
Figure 64. Peripheral I/O Mode
Table 92. Port Operating Modes
Note: 1. JTAG pins (TMS, TCK, TDI, TDO) are dedicated pins.
2. Port A is not available in the 52-pin package.
Table 93. Port Operating Mode Settings
Note: 1. N/A = Not Applicable
2. The direction of the Port A,B,C, and D pins are controlled by the Direction Register ORed with the individual output enable product
term (.oe) from the CPLD AND Array.
Table 94. I/O Port Latched Address Output Assignments
Port Mode
Port A
2
Port B
Port C
Port D
MCU I/O
Yes
Yes
Yes
Yes
PLD I/O
McellAB Outputs
McellBC Outputs
Additional Ext. CS Outputs
PLD Inputs
Yes
No
No
Yes
Yes
Yes
No
Yes
No
Yes
No
Yes
No
No
Yes
Yes
Address Out
Yes (A7 – 0)
Yes (A7 – 0)
No
No
Peripheral I/O
Yes
No
No
No
JTAG ISP
No
No
Yes
1
No
Mode
Defined in PSDsoft
Control Register
Setting
Direction Register
Setting
VM Register Setting
MCU I/O
Declare pins only
0
1 = output,
0 = input (Note
2
)
N/A
PLD I/O
Logic equations
N/A
(Note
2
)
N/A
Address Out
(Port A,B)
Declare pins only
1
1 (Note
2
)
N/A
Peripheral I/O
(Port A)
Logic equations
(PSEL0 & 1)
N/A
N/A
PIO Bit = 1
Port A (PA3-PA0)
Port A (PA7-PA4)
Port B (PB3-PB0)
Port B (PB7-PB4)
Address a3-a0
Address a7-a4
Address a3-a0
Address a7-a4
RD
PSEL0
PSEL1
PSEL
VM REGISTER BIT 7
WR
PA0-PA7
D0-D7
DATA BUS
AI02886
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