RM0082
DDR memory controller (MPMC)
Doc ID 018672 Rev 1
183/844
10.13.73 MEM102_CTL
register
10.13.74 MEM103_CTL
register
10.13.75 MEM104_CTL
register
Table 146.
MEM102_CTL register bit assignments
Bit
Name
Reset
value
Range
Description
[31:29] -
-
-
Reserved. Read undefined. Write should be
zero.
[28:24]
lowpower_auto_enab
le
0x0
0x0 - 0x1F
Enables automatic entry into the low power
mode on idle.
[23:19] -
-
-
Reserved. Read undefined. Write should be
zero.
[18:16] cke_delay
0x0
0x0 - 0x7
Additional cycles to delay CKE for status
reporting.
[15:10] -
-
-
Reserved. Read undefined. Write should be
zero.
[09:08]
lowpower_refresh_en
able
0x0
0x0 - 0x3
Enable refreshes during power down.
[07:01] -
-
-
Reserved. Read undefined. Write should be
zero.
[00]
tref_enable
0x0
0x0 - 0x1
Issue self refresh CMDs to the DRAMs every
TREF cycles.
Table 147.
MEM103_CTL register bit assignments
Bit
Name
Reset
value
Range
Description
[31:23] -
-
-
Reserved. Read undefined. Write should be
zero.
[22:08] emrs1_data
0x0
0x0 - 0x7FFF
EMRS1 data.
[07:05] -
-
-
Reserved. Read undefined. Write should be
zero.
[04:00] lowpower_control
0x0
0x0 - 0x1F
Controls entry into the low power modes.
Table 148.
MEM104_CTL register bit assignments
Bit
Name
Reset
value
Range
Description
[31:15] -
-
-
Reserved. Read undefined. Write
should be zero.
[30;16] emrs2_data1
0x0000
0x0000 - 0x7FFF
EMRS2 data for chips select 1.