CPLD and FPGA
ATCA-8310 Installation and Use (6806800M72D)
289
- Scratch Register (SCR)
1
Change in data set ready (DDSR) indicator
DDSR indicates that the DSR# input has changed state since the
last time it was read by the CPU. When DDSR is set and the modem
status interrupt is enabled, a modem status interrupt is generated:
1: Change in state of DSR# input since last read
0: No change in state of DSR# input since last read
0
GPP: r/w
2
Trailing edge of the ring indicator (TERI) detector
TERI indicates that the RI# input to the chip has changed from a
low to a high level. When TERI is set and the modem status
interrupt is enabled, a modem status interrupt is generated. Not
supported.
0
GPP: r/w
3
Change in data carrier detect (DDCD) indicator
DDCD indicates that the DCD# input to the chip has changed state
since the last time it was read by the CPU. When DDCD is set and
the modem status interrupt is enabled, a modem status interrupt
is generated. Not supported.
0
GPP: r/w
4
Complement of the clear-to-send (CTS#) input
When the Asynchronous Communications Element (ACE) is in
diagnostic test mode (LOOP [MCR4] = 1), this bit is equal to the
MCR bit 1 (RTS#).
Ext.
GPP: r
5
Complement of the data set ready (DSR#) input
When the ACE is in the diagnostic test mode (LOOP [MCR4] = 1),
this bit is equal to the MCR bit 0 (DTR#).
Ext.
GPP: r
6
Complement of the ring indicator (RI#) input
When the ACE is in the diagnostic test mode (LOOP [MCR4] = 1),
this bit is equal to the MCR bit 2 (OUT1#). Not supported.
Ext.
GPP: r
7
Complement of the data carrier detect (DCD#) input
When the ACE is in the diagnostic test mode (LOOP [MCR4] = 1),
this bit is equal to the MCR bit 3 (OUT2#). Not supported.
Ext.
GPP: r
Table 8-60 Modem Status Register (MSR) (continued)
IO Address: Base + 6
Bit
Description
Default
Access
Summary of Contents for ATCA-8310
Page 12: ...ATCA 8310 Installation and Use 6806800M72D Contents 12 Contents Contents ...
Page 26: ...ATCA 8310 Installation and Use 6806800M72D 26 List of Figures ...
Page 34: ...ATCA 8310 Installation and Use 6806800M72D About this Manual 34 About this Manual ...
Page 54: ...Hardware Preparation and Installation ATCA 8310 Installation and Use 6806800M72D 54 ...
Page 70: ...Controls Indicators and Connectors ATCA 8310 Installation and Use 6806800M72D 70 ...
Page 162: ...BIOS ATCA 8310 Installation and Use 6806800M72D 162 ...
Page 200: ...U Boot ATCA 8310 Installation and Use 6806800M72D 200 ...
Page 244: ...Intelligent Peripheral Management Controller ATCA 8310 Installation and Use 6806800M72D 244 ...
Page 438: ...CPLD and FPGA ATCA 8310 Installation and Use 6806800M72D 438 ...
Page 442: ...Replacing the Battery ATCA 8310 Installation and Use 6806800M72D 442 ...
Page 444: ...Related Documentation ATCA 8310 Installation and Use 6806800M72D 444 ...
Page 454: ...ATCA 8310 Installation and Use 6806800M72D Sicherheitshinweise 454 ...
Page 456: ...Index ATCA 8310 Installation and Use 6806800M72D 456 ...
Page 457: ...Index ATCA 8310 Installation and Use 6806800M72D 457 ...
Page 458: ...Index ATCA 8310 Installation and Use 6806800M72D 458 ...
Page 459: ......