Computer Hardware User Manual

Table Of Contents
1-60 Computer Group Literature Center Web Site
Programming Issues
1
SCC Parity Error
SCC Offboard Error
Description: Parity Error detected while the SCC was reading DRAM.
MPU Notification: SCC Transmit Interrupt or SCC Receive Interrupt
Status: SCC Transmit Interrupt Status register
SCC Transmit Current Buffer Address register
SCC Receive Interrupt Status register High
SCC Receive Current Buffer Address register PCCchip2
SCC Error Status register ($FFF4201C)
Comments: SCC Transmit and Receive interrupt enables are controlled
in the SCC and in the PCCchip2.
Description: Error encountered while the SCC was attempting to go to
the VMEbus.
MPU Notification: SCC Transmit Interrupt or SCC Receive Interrupt
Status: SCC Transmit Interrupt Status register
SCC Transmit Current Buffer Address register
SCC Receive Interrupt Status register High
SCC Receive Current Buffer Address register PCCchip2
SCC Error Status register ($FFF4201C)
Comments: SCC Transmit and Receive interrupt enables are controlled
in the SCC and in the PCCchip2.