CL-PS7111
Low-Power System-on-a-Chip
6.6.6
Software-Selectable Test Functionality
When bit 11 of the SYSCON register is set HIGH, all internal EPB accesses are output on the main
address and data buses as though they were external accesses to the address space addressed by CS5.
Hence CS5 handles a dual role: It is active as the strobe for internal accesses and for any accesses to
the standard address range for CS5. Additionally, in this mode, the internal signals are multiplexed out of
the device on port pins, as shown in Table 6-5.
Table 6-5. Software Selectable Test Functionality
Signal
CLK
NIRQ
NFIQ
I/O
Pin
Function
O
PE0
Waited clock to CPU
O
PE1
NIRQ interrupt to CPU
O
PE2
NFIQ interrupt to CPU
90
ELECTRICAL SPECIFICATIONS
September 1997
PRELIMINARY DATA BOOK v2.0