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@CHIP-RTOS C Library V2.00 - Hardware API


pfe_enable_pcs

Enable chip selects PCS[0..3]#, PCS[5..6]#

void pfe_enable_pcs ( unsigned char pcs );

Parameters

pcs

Chip select number:
    0: Enable PCS0#, active when I/O address between 000h..0FFh
    1: Enable PCS1#, active when I/O address between 100h..1FFh
    2: Enable PCS2#, active when I/O address between 200h..2FFh
    3: Enable PCS3#, active when I/O address between 300h..3FFh
    4: N/A
    5: Enable PCS5#, active when I/O address between 500h..5FFh
    6: Enable PCS6#, active when I/O address between 600h..6FFh

Return Value

-- none --.

Comments

Used pins:
    PCS[0..3]#, PCS[5..6]#
Excluded pins:
    if PCS0#: ALE (multiplexed address / data bus)
    if PCS1#: A0, PIO4, TMRIN0, SPI
    if PCS2#: PIO6, INT2, INTA#, PWD, SPI, hw flow control serial port 1,
        cascaded interrupt controller
    if PCS3#: PIO5, INT4, SPI, hw flow control serial port 1
    if PCS5#: A[1..2], PIO3, TMROUT1, TMRIN1
    if PCS6#: A[1..2], PIO2

See Also

RTOS API

This library function invokes a RTOS software interrupt. Refer to this RTOS API function's documentation for more details.


This API List
List of C Libraries
@CHIP-RTOS Main Index


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