ELM
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7.4.5.1 ELM Revision Register (ELM_REVISION)
This register contains the IP revision code. The ELM Revision Register (ELM_REVISION) is shown in
Figure 7-141 and described in Table 7-175.
Figure 7-141. ELM Revision Register (ELM_REVISION)
31 0
REVISION
R-0
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset
Table 7-175. ELM Revision Register (ELM_REVISION) Field Descriptions
Bit Field Value Description
31-0 REVISION 0-FFFF FFFFh IP Revision
7.4.5.2 ELM System Configuration Register (ELM_SYSCONFIG)
This register allows controlling various parameters of the OCP interface. The ELM System Configuration
Register (ELM_SYSCONFIG) is shown in Figure 7-142 and described in Table 7-176.
Figure 7-142. ELM System Configuration Register (ELM_SYSCONFIG)
31 16
Reserved
R-0
15 9 8 7 5 4 3 2 1 0
Reserved CLOCKACTIVITYOCP Reserved SIDLEMODE Reserved SOFTRESET AUTOGATING
R-0 R/W-0 R-0 R/W-2 R-0 R/W-0 R/W-1
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset
Table 7-176. ELM System Configuration Register (ELM_SYSCONFIG) Field Descriptions
Bit Field Value Description
31-9 Reserved 0 Reserved
8 CLOCKACTIVITY OCP Clock activity when module is in IDLE mode (during wake up mode period).
OCP
0 OCP Clock can be switch-off
1 OCP Clock is maintained during wake up period
7-5 Reserved 0 Reserved
4-3 SIDLEMODE Slave interface power management (IDLE req/ack control).
0 FORCE Idle. IDLE request is acknowledged unconditionally and immediately. (Default Dumb
mode for safety)
1h NO idle. IDLE request is never acknowledged.
2h SMART Idle. The acknowledgment to an IDLE request is given based on the internal activity.
3h Reserved - do not use
2 Reserved 0 Reserved
1 SOFTRESET Module software reset. This bit is automatically reset by hardware (During reads, it always
returns 0.). It has same effect as the OCP hardware reset.
0 Normal mode.
1 Start soft reset sequence.
0 AUTOGATING Internal OCP clock gating strategy. (No module visible impact other than saving power.)
0 OCP clock is free-running.
1 Automatic internal OCP clock gating strategy is applied based on the OCP interface activity.
488
Memory Subsystem SPRUH73H–October 2011–Revised April 2013
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