Uart Brm Incremental Preset Registers 1–4; Table 27-27 Uart Brm Incremental Preset Registers 1-4 Description - Motorola DragonBall MC9328MX1 Reference Manual

Universal Asynchronous Receiver/Transmitters (UART) Modules
27.7.15 UART BRM Incremental Preset Registers 1–4
The eight 32-bit UART BRM Incremental Preset Registers (UART BRM INC) are used in conjunction
with the automatic baud detection logic. These registers are assigned preset values for the special baud
rates 920 Kbps, 460 Kbps, 230 Kbps, and 115.2 Kbps. When the BPEN bit is asserted, these registers are
used on the detection of a remainder. These registers must be written to prior to enabling the auto baud
detection logic. This feature supports 16 MHz, 25 MHz, and 30 MHz reference frequencies only. Enabling
this feature with other reference frequencies is not supported.
BIPR1_1 UART1 BRM Incremental Preset Register 1
BIPR1_2 UART2 BRM Incremental Preset Register 1
BIPR2_1 UART1 BRM Incremental Preset Register 2
BIPR2_2 UART2 BRM Incremental Preset Register 2
BIPR3_1 UART1 BRM Incremental Preset Register 3
BIPR3_2 UART2 BRM Incremental Preset Register 3
BIPR4_1 UART1 BRM Incremental Preset Register 4
BIPR4_2 UART2 BRM Incremental Preset Register 4
BIT 31 30 29
TYPE r r r
0 0 0
RESET
BIT 15 14 13
TYPE rw rw rw
? ? ?
RESET
B
Table 27-27. UART BRM Incremental Preset Registers 1–4 Description
Name
Reserved Reserved—These bits are reserved and should read 0.
Bits 31–16
INCPI BRM Incremental Preset Register—Holds the appropriate numerator for the special baud rates
Bits 15–0 when in automatic detect mode.
BIPR1 register is for the 920 Kbps
BIPR2 register is for the 460 Kbps
BIPR3 register is for the 230 Kbps
BIPR4 register is for the 115.2 Kbps
27-48
28 27 26 25 24
r r r r
0 0 0 0
12 11 10 9
rw rw rw rw rw
? ? ? ?
MC9328MX1 Reference Manual
23 22 21
r r r r
0 0 0 0
0x0000
8 7 6 5
INCPI
rw rw rw
? ? ? ?
0x????
Description
Addr
0x002060B0
0x002070B0
0x002060B4
0x002070B4
0x002060B8
0x002070B8
0x002060BC
0x002070BC
20 19 18 17
r r r r
0 0 0 0
4 3 2 1
rw rw rw rw
? ? ? ?
MOTOROLA
16
r
0
0
rw
?