參數(shù)資料
型號(hào)： FS7VS-5
廠商： Mitsubishi Electric Corporation
英文描述： HIGH-SPEED SWITCHING USE
中文描述： 高速開關(guān)使用
文件頁數(shù)： 50/91頁
文件大小： 488K
代理商： FS7VS-5
PSD935G2
PSD9XX Family
49
The
PSD935G2
Functional
Blocks
(cont.)
9.4.2.4 Address In Mode
For microcontrollers that have more than 16 address lines, the higher addresses can be
connected to Ports A, B, C, D or F and are routed as inputs to the PLDs. The address
input can be latched by the address strobe (ALE/AS). Any input that is included in the
DPLD equations for the Main Flash, Boot Flash, or SRAM is considered to be an address
input.
9.4.2.5 Data Port Mode
Port F can be used as a data bus port for a microcontroller with a non-multiplexed
address/data bus. The Data Port is connected to the data bus of the microcontroller. The
general I/O functions are disabled in Port F if the port is configured as Data Port. Data Port
Mode is automatically configured in PSDsoft when a non-multiplexed bus MCU is selected.
9.4.2.3 Address Out Mode
For microcontrollers with a multiplexed address/data bus, Address Out Mode can be used
to drive latched addresses onto the port pins. These port pins can, in turn, drive external
devices. Either the output enable or the corresponding bits of both the Direction Register
and Control Register must be set to a ‘1’ for pins to use Address Out Mode. This must be
done by the MCU at run-time. See Table 18 for the address output pin assignments on
Ports E, F and F for various MCUs.
Note:
Do not drive address lines with Address Out Mode to an external memory device if
it is intended for the MCU to boot from the external device. The MCU must first boot from
PSD memory so the Direction and Control register bits can be set.
MCU
Port E (3:0)
Port E (7:4)
Port F (3:0)
Port F (7:4)
Port G (3:0)
Port G (7:4)
80C51XA
N/A
*
Addr (7:4)
N/A
*
Addr (7:4)
Addr (11:8)
N/A
80C251
(Page Mode)
N/A
N/A
N/A
N/A
Addr (11:8)
Addr (15:12)
All Other
Eight-Bit
Multiplexed
Addr (3:0)
Addr (7:4)
Addr (3:0)
Addr (7:4)
Addr (3:0)
Addr (7:4)
8-Bit
Non-Mux
Bus
N/A
N/A
N/A
N/A
Addr (3:0)
Addr (7:4)
Table 18. I/OPort Latched Address Output Assignments
相關(guān)PDF資料
PDF描述
PSD935F3V-15B81 Configurable Memory System on a Chip for 8-Bit Microcontrollers
PSD935F3V-15B81I Ceramic Chip Capacitors / MIL-PRF-55681; Capacitance [nom]: 30000uF; Working Voltage (Vdc)[max]: 100V; Capacitance Tolerance: +/-0.1pF; Dielectric: Multilayer Ceramic; Temperature Coefficient: C0G (NP0); Lead Style: Surface Mount Chip; Lead Dimensions: 0805; Termination: Solder Coated (Sn/Pb, 70/30); Body Dimensions: 0.080" x 0.050" x 0.055"; Container: Bag; Features: MIL-PRF-55681: S Failure Rate
PSD935F3V-15J Configurable Memory System on a Chip for 8-Bit Microcontrollers
PSD935F3V-15JI Configurable Memory System on a Chip for 8-Bit Microcontrollers
PSD935F3V-15M Configurable Memory System on a Chip for 8-Bit Microcontrollers
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