Data Format (Non Iso-7816) - NXP Semiconductors MKL27Z128VFM4 Reference Manual

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Functional description

38.5.4 Data format (non ISO-7816)

Each data character is contained in a frame that includes a start bit and a stop bit. The rest

of the data format depends upon C1[M], C1[PE], S2[MSBF] and C4[M10].

38.5.4.1 Eight-bit configuration

Clearing C1[M] configures the UART for 8-bit data characters, that is, eight bits are

memory mapped in D. A frame with eight data bits has a total of 10 bits. The most

significant bit of the eight data bits can be used as an address mark to wake the receiver.

If the most significant bit is used in this way, then it serves as an address or data

indication, leaving the remaining seven bits as actual data. When C1[PE] is set, the eighth

data bit is automatically calculated as the parity bit. See the following table.

1. The address bit identifies the frame as an address character. See

Table 38-9. Baud rate fine adjust (continued)

Table 38-10. Configuration of 8-bit data format

KL27 Sub-Family Reference Manual , Rev. 5, 01/2016

Baud Rate Fractional Divisor (BRFD)

22/32 = 0.6875

23/32 = 0.71875

24/32 = 0.75

25/32 = 0.78125

26/32 = 0.8125

27/32 = 0.84375

28/32 = 0.875

29/32 = 0.90625

30/32 = 0.9375

31/32 = 0.96875

Freescale Semiconductor, Inc.