Information

UARTx_WP7816T1 field descriptions
Field Description
7–4
CWI
Character Wait Time Integer (C7816[TTYPE] = 1)
This value is used to calculate the value used for the CWT counter. It represents a value between 0 and
15. This value is only used when C7816[TTYPE] = 1. See Wait time and guard time parameters.
3–0
BWI
Block Wait Time Integer(C7816[TTYPE] = 1)
This value is used to calculate the value used for the BWT counter. It represent a value between 0 and
15. This value is only used when C7816[TTYPE] = 1. See Wait time and guard time parameters.
48.3.28 UART 7816 Wait N Register (UARTx_WN7816)
The WN7816 register contains a parameter that is used in the calculation of the guard
time counter. This register may be read at anytime. This register must only be written
when C7816[ISO_7816E] is not set.
Addresses: UART0_WN7816 is 4006_A000h base + 1Ch offset = 4006_A01Ch
UART1_WN7816 is 4006_B000h base + 1Ch offset = 4006_B01Ch
UART2_WN7816 is 4006_C000h base + 1Ch offset = 4006_C01Ch
UART3_WN7816 is 4006_D000h base + 1Ch offset = 4006_D01Ch
Bit 7 6 5 4 3 2 1 0
Read
GTN
Write
Reset
0 0 0 0 0 0 0 0
UARTx_WN7816 field descriptions
Field Description
7–0
GTN
Guard Band N
This register field defines a parameter used in the calculation of GT, CGT and BGT counters. The value
represents an integer number 0-255. See Wait time and guard time parameters.
Memory map and registers
K20 Sub-Family Reference Manual, Rev. 6, Nov 2011
1332 Freescale Semiconductor, Inc.