RM0082
Miscellaneous registers (Misc)
Doc ID 018672 Rev 1
247/844
12.4.29
Memory BIST execution control
12.4.30 BIST1_CFG_CTR
register
The BIST1_CFG_CTR is an R/W register which configures and controls the internal core
memory BIST execution at the functional speed. The register bit assignments is given in the
next table.
[03]
S_W_mode
1’h1
SSTL pad drive strength mode: the overall drive
strength picture is detailed here below.
1’b0: Strong drive strength.
1’b1: Weak drive strength.
This bit changes the output impedance of the pad.
[02]
PROG_a
1’h0
Combination of these bits selects the speed of
operation of PAD, 00->200 MHz, 01->266 MHz, 10-
>333 MHz, 11->Prohibited.
[01]
PROG_b
1’h1
[00]
DDR_LOW_POWER_
DDR2_mode
1’h0
It selects DDR2(0) or DDR low power (1) mode.
Table 182.
DDR_PAD register bit assignments (continued)
DDR_PAD Register
0x0F0
Bit
Name
Reset
Value
Description
Table 183.
BIST1_CFG_CTR register bit assignments
BIST1_CFG_CTR Register
0x0F4
Bit
Name
Reset
Value
Description
[31]
bist1_res_rst
1’h0
Reset status register result (BIST1_STS_RES):
1’b0: Disable reset status.
1’b1: Active reset status.
[30:29}
RFU
-
Reserved for future use (Write don’t care - Read return zeros)
[28]
bist1_rst
1’h0
Reset BIST engine collar:
1’b0: Disable reset.
1’b1: Active reset.