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SCI Control Registers

29.7.10 SCI Format Control Register (SCIFORMAT)

Figure 29-17 and Table 29-15 illustrate this register.

Figure 29-17. SCI Format Control Register (SCIFORMAT) [offset = 28h]

31 16

Reserved

R-0

15 3 2 0

Reserved CHAR

R-0 R/W-0

LEGEND: R/W = Read/Write; R = Read only; -n = value after reset

Table 29-15. SCI Format Control Register (SCIFORMAT) Field Descriptions

Bit Field Value Description

31-3 Reserved 0 Read returns 0. Writes have no effect.

2-0 CHAR Character length control bits. These bits set the SCI character length from 1 to 8 bits.

When data of fewer than eight bits in length is received, it is left justified in SCIRD and

padded with trailing zeros. Data read from the SCIRD should be shifted by software to make

the received data right justified.

Data written to the SCITD should be right justified but does not need to be padded with

leading zeros.

0 The character is 1 bit long.

1h The character is 2 bits long.

2h The character is 3 bits long.

3h The character is 4 bits long.

4h The character is 5 bits long.

5h The character is 6 bits long.

6h The character is 7 bits long.

7h The character is 8 bits long.

1471

SPNU562–May 2014 Serial Communication Interface (SCI) Module

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