Beck IPC@CHIP - SC12 - Mutual Exclusive Functions

IPC@CHIP - SC12
Hardware Manual v1.1 [05.11.2002]
©BECK IPC GmbH page 15 of 28
5. MUTUAL EXCLUSIVE FUNCTIONS
The IPC@CHIP family microcontroller provides a lot of different functions by several multi-function
pins. Choosing one function will result in disabling other functions. The following table shows, which
functions are mutual exclusive.
Pin Name Function Exclusion
A0 nonmultiplexed address A0 PIO4, PCS1#, TMRIN0
A[1..2] nonmultiplexed address
A[1..2]
PIO[2..3], PCS[5..6], Timer 1
ALE Address / Data bus PCS0#
CTS0 hardware flow control Serial
Port 0
PIO9
CTS1 hardware flow control Serial
Port 1
PIO6, PCS2#, INT2, INTA#, PWD
DRQ0 DMA Request 0 PIO1, INT5, I
2
C-Bus
DRQ1 DMA Request 1 PIO0, INT6, I
2
C-Bus
I
2
C_SCL,
I
2
C_SDA
I
2
C-Bus by default PIO[0..1], DMA, INT[5..6]
By default pin-assignment of the I
2
C functions is in
conflict with these pin functions, but the user is free to
assign the I
2
C functions to any other PIO pin,
disabling the other functions of the pin chosen.
INT0 Interrupt Request 0 PIO13, TMROUT0, cascaded Interrupt Controller *
INT2 Interrupt Request 2 PIO6, PCS2#, INTA#, PWD, hardware flow control
Serial Port 1
INT3 Interrupt Request 3 PIO12, Serial Port 1
INT4 Interrupt Request 4 PIO5, PCS3#, SPI, hardware flow control Serial Port 1
INT5 Interrupt Request 5 PIO1, DRQ0, I
2
C-Bus
INT6 Interrupt Request 6 PIO0, DRQ1, I
2
C-Bus
INTA# * cascaded Interrupt Controller PIO6, PIO13, INT0, INT2, PCS2#, PWD, TMROUT0,
hw flow control Serial Port 1
PWD Pulse Width Demodulator PIO6, PCS2, INT2, INT4, TMROUT[0..1],
TMRIN[0..1], INTA#, cascaded Interrupt Controller *,
hw flow control Serial Port 1
PCS0# programmable chip select 0 Address/Data bus
PCS1# programmable chip select 1 A0, PIO4, TMRIN0
PCS2# programmable chip select 2 PIO6, INT2, INTA#, PWD, hw flow control Serial Port
1, cascaded Interrupt Controller *
PCS3# programmable chip select 3 PIO5, INT4, hardware flow control Serial Port 1
PCS5# programmable chip select 5 A[1..2], PIO3, Timer 1
PCS6# programmable chip select 6 A[1..2], PIO2
PIO0 Programmable I/O DRQ1, INT6, I
2
C-Bus
PIO1 Programmable I/O DRQ0, INT5, I
2
C-Bus
PIO2 Programmable I/O A2, PCS6#
PIO3 Programmable I/O A1, PCS#, Timer 1
PIO4 Programmable I/O A0, PCS1#, TMRIN0
PIO5 Programmable I/O PCS3#, INT4, hardware flow control Serial Port 1
PIO6 Programmable I/O PCS2#, INT2, cascaded Interrupt Controller *, PWD,
hw flow control Serial Port 1
PIO7 Programmable I/O Serial Port 0
PIO8 Programmable I/O Serial Port 0
PIO9 Programmable I/O Hardware flow control Serial Port 0
PI1O Programmable I/O Hardware flow control Serial Port 0