mcf51jf128 Freescale Semiconductor, Inc, mcf51jf128 Datasheet - Page 1093

• Manufacturer Part Number: mcf51jf128
• Description: Mcf51jf128 Reference Manual
• Manufacturer: Freescale Semiconductor, Inc

43.3.27 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 FFFF_8140h base + 1Ch offset = FFFF_815Ch
43.3.28 UART 7816 Wait FD Register (UARTx_WF7816)
The WF7816 contains parameters that are used in the generation of various counters
including GT, CGT, BGT, WT and BWT. This register may be read from at anytime.
This register must only be written to when C7816[ISO_7816E] is not set.
Addresses: UART0_WF7816 is FFFF_8140h base + 1Dh offset = FFFF_815Dh
Freescale Semiconductor, Inc.
Field
Reset
Field
GTN
Reset
BWI
3–0
Read
7–0
Read
Write
Write
Bit
Bit
UART1_WN7816 is FFFF_8160h base + 1Ch offset = FFFF_817Ch
UART1_WF7816 is FFFF_8160h base + 1Dh offset = FFFF_817Dh
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
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
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
7
0
7
0
UARTx_WP7816T1 field descriptions (continued)
0
0
6
6
MCF51JF128 Reference Manual, Rev. 2, 03/2011
UARTx_WN7816 field descriptions
0
0
5
5
Chapter 43 Universal Asynchronous Receiver/Transmitter (UART)
Preliminary
Wait time and guard time
0
0
4
4
Description
Description
GTFD
GTN
0
0
3
3
Wait time and guard time
Wait time and guard time
parameters.
0
0
2
2
parameters.
parameters.
0
0
1
1
0
1
0
0
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