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Maps and Registers
ATCA-7490 Installation and Use (6806800U11F
)
130
When bits 0, 1, 2, or 3 are set to logic 1, a Modem Status interrupt is generated if bit 3 of the
Interrupt Enable Register is set.
Table 5-34 Modem Status Register (MSR)
LPC IO Address: Base + 6
Bit Description
Default
Access
0
Change in clear-to-send (DCTS) indicator
DCTS indicates that the CTS# input has changed state since the last
time it was read by the CPU. When DCTS is set (autoflow control is
not enabled and the modem status interrupt is enabled), a modem
status interrupt is generated. When autoflow control is enabled
(DCTS is cleared), no interrupt is generated:
1: Change in state of CTS# input since last read
0: No change in state of CTS# input since last read
0
LPC: r/w
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
LPC: 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
LPC: 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
LPC: 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 (#).
Ext.
LPC: 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.
LPC: r
Summary of Contents for ATCA-7490
Page 1: ...ATCA 7490 Installation and Use P N 6806800U11F December 2018 ...
Page 12: ...ATCA 7490 Installation and Use 6806800U11F Contents 12 Contents Contents ...
Page 20: ...ATCA 7490 Installation and Use 6806800U11F 20 List of Tables ...
Page 38: ...ATCA 7490 Installation and Use 6806800U11F Sicherheitshinweise 38 ...
Page 44: ...Introduction ATCA 7490 Installation and Use 6806800U11F 44 ...
Page 66: ...Hardware Preparation and Installation ATCA 7490 Installation and Use 6806800U11F 66 ...
Page 88: ...Controls Indicators and Connectors ATCA 7490 Installation and Use 6806800U11F 88 ...
Page 106: ...Functional Description ATCA 7490 Installation and Use 6806800U11F 106 ...
Page 199: ...BIOS ATCA 7490 Installation and Use 6806800U11F 199 Add an ISCSI Attempt ...
Page 226: ...BIOS ATCA 7490 Installation and Use 6806800U11F 226 Figure 6 25 Event Log Viewer ...
Page 356: ...IPMI Feature Set ATCA 7490 Installation and Use 6806800U11F 356 ...
Page 360: ...Replacing the Battery ATCA 7490 Installation and Use 6806800U11F 360 ...
Page 371: ......