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@CHIP-RTOS C Library V2.06 - Hardware API


pfe_enable_pcs

Enable chip selects PCSx#

void pfe_enable_pcs ( unsigned char pcs );

SC1x 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

SC1x3 Parameters

pcs
Chip select number:
    0: don't care (PCS0# is no PIO), PCS0# is active when I/O address between 000h..1FFh
    1: don't care (PCS1# is no PIO), PCS1# is active when I/O address between 200h..3FFh
    2: don't care (PCS2# is no PIO), PCS2# is active when I/O address between 400h..5FFh
    3: don't care (PCS3# is no PIO), PCS3# is active when I/O address between 600h..7FFh
    4: Enable PCS4#, active when I/O address between 800h..9FFh
    5: Enable PCS5#, active when I/O address between A00h..BFFh
    6: Enable PCS6#, active when I/O address between C00h..DFFh
    7: Enable PCS7#, active when I/O address between E00h..FFFh

Return Value

-- none --.

SC1x 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

SC1x3 Comments

Used pins:
    PCS[0..7]#

Excluded pins:
    If PCS4#: PIO4
    If PCS5#: PIO3
    If PCS6#: PIO2
    If PCS7#: PIO5

See Also

RTOS API

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

Supported since or modified in @CHIP-RTOS version

    SC12SC13SC11SC1x3
    V1.00V1.00V1.00V0.90

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@CHIP-RTOS Main Index


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