User Manual

Apollo3 Blue Datasheet
DS-A3-0p9p1 Page 816 of 909 2019 Ambiq Micro, Inc.
All rights reserved.
23.1.2.10SECURITYWIREDIFCCFG0 Register
Security Wired Interface configuration word0
OFFSET: 0x00000028
INSTANCE 0 ADDRESS: 0x00000028
This 32-bit word contains the interface configuration word0 for the UART wired update.
2:0 IFC 0x7
Wired interface configuration
IFC_UART = 0x1 - UART interface
IFC_SPI = 0x2 - SPI interface
IFC_I2C = 0x4 - I2C interface
Table 1184: SECURITYWIREDIFCCFG0 Register
3
1
3
0
2
9
2
8
2
7
2
6
2
5
2
4
2
3
2
2
2
1
2
0
1
9
1
8
1
7
1
6
1
5
1
4
1
3
1
2
1
1
1
0
0
9
0
8
0
7
0
6
0
5
0
4
0
3
0
2
0
1
0
0
RSVD BAUDRATE
DATALEN
2STOP
EVEN
PAR
CTS
RTS
UART
Table 1185: SECURITYWIREDIFCCFG0 Register Bits
Bit Name Reset RW Description
31:28 RSVD 0xf
Reserved
27:8 BAUDRATE 0xfffff
UART Baudrate
7:6 DATALEN 0x3
Number of Data Bits
5BIT = 0x0 - 5 bit
6BIT = 0x1 - 6 bit
7BIT = 0x2 - 7 bit
8BIT = 0x3 - 8 bit
52STOP 0x1
2 Stop Bits
4 EVEN 0x1
Even Parity
3PAR 0x1
Enable Parity
2CTS 0x1
Enable CTS
1RTS 0x1
Enable RTS
Table 1183: SECURITYWIREDCFG Register Bits
Bit Name Reset RW Description