User`s guide

2–44 Getting Started
Sample Session on the AlphaPC 164LX
SROM> dm ! Set UBCSB register to allow access
A> 809e0
! to configuration jumpers
D> ff000000
! (address 0x801-2).
SROM> em
! Read SIO identification registers.
A> 80000
! The value shown is the Intel ID for
00000087.00080000:04848086 ! this part.
SROM> ba
00000087.00000000
BaseAddr OFF
SROM> dm
! Write out to the LEDs post-card. You
A> 8580001000
! should see an F0 on it.
D> f0
SROM> em ! Read first byte of flash. If it has an
A> 86fff80000
! image with the standard ROM header, you
00000086.fff80000:5a5ac3c3 ! will see this signature.
! Enable the real-time clock in the SMC chipset.
SROM> dm
! Put SMC in configuration mode
A> 8580006e00
! by writing to I/O address 0x370
D> 55
! the value 0x55 twice.
SROM> dm
A> 8580006e00
D> 55
SROM> dm
A> 8580006e00
D> 20 ! Read the device ID and rev.
SROM> em
A> 8580006e20 ! Data port for SMC is at I/O address 0x371.
00000085.80006e20: a5a5023c ! It should contain this value.
!xxxx02xx Only one byte is significant.
SROM> dm
! Set device number to RTC.
A> 8580006e00
! All the configuration commands
D> 7
! that follow will apply to RTC only.