Vsbc-32 functional description – Kontron VSBC-32 User Manual
Page 48
VSBC-32
Functional Description
ID 21168, Rev. 04
Page 2 - 16
©
PEP Modular Computers GmbH
Table 2-5: IUC/IUC-32 Porting Information (Sheet 1 of 2)
CXC
Function
Pin
MC68302
HW
Comp.
MC68(EN)
360
Port
Comment
See
Note
IRQ_1
A1
Yes
PC0
—
IRQ_2
A2
Yes
PC1
—
IRQ_3
A3
Yes
PC2
—
IRQ_4
A4
Yes
PC3
—
DMA_ACK
C2
Yes
PB5
—
DMA_REQ
C3
Yes
PB4
—
SER1_RCLK
B1
Yes
PA8
—
SER1_TCLK
B2
Yes
PA10
—
SER1_TXD
B4
Yes
PA3
—
SER1_RXD
B10
Yes
PA2
—
SER1_RTS
B5
Yes
PB13
—
SER1_DTR
A13
Yes
PB17
—
SER1_CTS
B13
Yes
PC6
—
SER1_CD
B14
Yes
PC7
—
SER2_RCLK
C16
Yes
PA13
Cannot be used if J4 is set
3
SER2_TCLK
C15
Yes
PA12
—
SER2_TXD
C17
Yes
PA5
—
SER2_RXD
C18
Yes
PA4
—
SER2_RTS
C12
Yes
PB14
—
SER2_DTR
A11
Yes
PB16
—
SER2_CTS
C13
Yes
PC8
—
SER2_CD
C11
Yes
PC9
—
SER3_RCLK
C6
Yes
PA15
Not usable if SI piggyback uses SCC4
4
SER3_TCLK
C5
Yes
PA14
—
SER3_TXD
C8
Yes
PA7
Not usable if SI piggyback uses SCC4
4
Legend:
1
Reserved Pin: On a standard VSBC-32 board, this signals is used for UART ports at BU7 and BU8.
2
Reserved Pin: On a standard VSBC-32 board, this signal is used for SPI to which the EEPROM is already con-
nected. PB0 is chip select of the EEPROM.
3
Reserved Pin: On PA13, a 24 MHz clock signal is routed via jumper J4. This signal is always needed for PEP
standard software (serial drivers).
4
Dual Functioning Pin: This signal is routed both to the mainboard’s interface for serial interface piggybacks
(ST5C) and the CXC backplane connector and can be used by either one or the other, but not both at the same
time. Due to this, a conflict exists if the SCC4 port is to be used with the SI232 piggyback and CXC boards
(such as CXM-SIO3), as both boards access this port. The SCC4 port can, therefore, not be used at the same
time by serial interface piggybacks and CXC boards.