z16f2811 ZiLOG Semiconductor, z16f2811 Datasheet - Page 169

• Manufacturer Part Number: z16f2811
• Description: High Performance Microcontrollers
• Manufacturer: ZiLOG Semiconductor

Table 84. LIN-UART Mode Select and Status Register (UxMDSTAT)
PS022006-0207
RESET
FIELD
ADDR
BITS
R/W
LIN-UART Mode Select and Status Register
R/W
7
0
This register contains mode select and status bits.
MSEL—Mode Select
This R/W field determines which control register is accessed when performing a Write or
Read to the UART Control 1 register address. This field also determines which status is
returned in the mode status field when reading this register.
000 = Multiprocessor and normal UART control/status
001 = Noise Filter control/status
010 = LIN Protocol control/status
011–110: Reserved
111 = LIN-UART hardware revision (allows hardware revision to be read in the mode
Mode Status—This read-only field returns status corresponding to the mode selected by
MSEL
000: MULTIPROCESSOR and NORMAL UART mode status = {
001: Noise filter status = {
010: LIN mode status = {
011–110: Reserved =
111: LIN-UART hardware revision
MULTIPROCESSOR Mode Status field (MSEL = 000B)
NE—Noise Event
This bit is asserted if digital noise is detected on the receive data line when the data is
sampled (center of bit time). If this bit is set, it does not mean that the receive data is
corrupted (in extreme cases), just that one or more of the noise filter data samples near the
center of the bit time did not match the average data value.
NEWFRM—Status bit denoting the start of a new frame. Reading the LIN-UART receive
data register Resets this bit to 0.
MPRX
as follows:
status field)
MSEL
}
R/W
6
0
{0, 0, 0, 0, 0}
R/W
5
0
NE, RxBreakLength[3:0
NE
P R E L I M I N A R Y
,
FF-E204H, FF-E214H
0,0,0,0}
R
4
0
R
3
0
Mode Status
]}
R
2
0
Product Specification
NE
ZNEO
,
0, 0, NEWFRM,
1
R
0
™
Z16F Series
LIN-UART
R
0
0
155