Information

UARTx_WP7816T0 field descriptions
Field Description
7–0
WI
Wait Timer Interrupt (C7816[TTYPE] = 0)
Used to calculate the value used for the WT counter. It represents a value between 1 and 255. The value
of zero is not valid. This value is used only when C7816[TTYPE] = 0. See . Wait time and guard time
parameters
48.3.27 UART 7816 Wait Parameter Register (UARTx_WP7816T1)
The WP7816 register contains constants used in the generation of various wait timer
counters. To save register space, this register is used differently when C7816[TTYPE] =
0 and C7816[TTYPE] = 1. This register may be read at any time. This register must be
written to only when C7816[ISO_7816E] is not set.
Address: Base address + 1Bh offset
Bit 7 6 5 4 3 2 1 0
Read
CWI BWI
Write
Reset
0 0 0 0 1 0 1 0
UARTx_WP7816T1 field descriptions
Field Description
7–4
CWI
Character Wait Time Integer (C7816[TTYPE] = 1)
Used to calculate the value used for the CWT counter. It represents a value between 0 and 15. This value
is used only when C7816[TTYPE] = 1. See Wait time and guard time parameters .
3–0
BWI
Block Wait Time Integer(C7816[TTYPE] = 1)
Used to calculate the value used for the BWT counter. It represent a value between 0 and 15. This value
is used only 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 any time. This register must be written to only
when C7816[ISO_7816E] is not set.
Address: Base address + 1Ch offset
Bit 7 6 5 4 3 2 1 0
Read
GTN
Write
Reset
0 0 0 0 0 0 0 0
Memory map and registers
K20 Sub-Family Reference Manual, Rev. 1.1, Dec 2012
1308
Preliminary
Freescale Semiconductor, Inc.
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