Table 3-117 BBGEN_CTRL Register bit assignments (continued)
Bits
Name
Function
[4]
BP_HIGH
Bypass AVDD to Positive BBG. To apply
body-biasing in bypass mode, mix settings
with external voltages apply to VBBP and
VBBN pads:
0b0
: Apply VBBP=VDD_CORE, VBBN=0V.
0b1
: Bypass AVDD for enhanced bypass.
Apply VBBP=AVDD, VBBN=0V.
Reset value
0b0
.
[3:1]
P_CTRL
Select VBBP range:
0b001
: VBBP_OUT=DVDD+0.2V.
0b010
: VBBP_OUT=DVDD+0.3V.
0b011
: VBBP_OUT=DVDD+0.4V.
Reset value
0b000
.
[0]
EN
Enable body-bias function:
0b0
: Bypass mode, or OFF if no external
bypass voltage is applied on VBBP and
VBBN.
0b1
: Body-bias enabled. BBGen is ON.
Reset value
0b0
.
SPARE_CTRL1 Register
The SPARE_CTRL1 Register characteristics are:
Purpose
Spare control register.
Usage constraints
There are no usage constraints.
Memory offset and full register reset value
See
.
The following table shows the SPARE_CTRL1 Register bit assignments.
Table 3-118 SPARE_CTRL1 Register bit assignments
Bits
Name
Function
[31:0]
SPARE_CTRL1
Spare control register.
Software assigns the bit meanings.
Reset value
0x0000_0000
.
CHIP_ID Register
The CHIP_ID Register characteristics are:
3 Programmers model
3.11 Serial Configuration Control registers
101835_0000_01_en
Copyright © 2019, 2020 Arm Limited or its affiliates. All rights
reserved.
3-169
Non-Confidential