PSC=B_0x0
USART guard time and prescaler register
| PSC | Prescaler value 0 (B_0x0): Reserved - do not program this value 1 (B_0x1): Divides the source clock by 1 (IrDA mode) / by 2 (Smarcard mode) 2 (B_0x2): Divides the source clock by 2 (IrDA mode) / by 4 (Smartcard mode) 3 (B_0x3): Divides the source clock by 3 (IrDA mode) / by 6 (Smartcard mode) 31 (B_0x1F): Divides the source clock by 31 (IrDA mode) / by 62 (Smartcard mode) 32 (B_0x20): Divides the source clock by 32 (IrDA mode) 255 (B_0xFF): Divides the source clock by 255 (IrDA mode) |
| GT | Guard time value This bitfield is used to program the Guard time value in terms of number of baud clock periods. This is used in Smartcard mode. The Transmission Complete flag is set after this guard time value. This bitfield can only be written when the USART is disabled (UE = 0). Note: If Smartcard mode is not supported, this bit is reserved and must be kept at reset value. Refer to Section 33.4: USART implementation on page 1038. |