Datasheet

SCI memory map
Absolute
address
(hex)
Register name
Width
(in bits)
Access Reset value
Section/
page
3080 SCI Baud Rate Register: High (SCI0_BDH) 8 R/W 00h 15.2.1/406
3081 SCI Baud Rate Register: Low (SCI0_BDL) 8 R/W 04h 15.2.2/407
3082 SCI Control Register 1 (SCI0_C1) 8 R/W 00h 15.2.3/408
3083 SCI Control Register 2 (SCI0_C2) 8 R/W 00h 15.2.4/409
3084 SCI Status Register 1 (SCI0_S1) 8 R C0h 15.2.5/410
3085 SCI Status Register 2 (SCI0_S2) 8 R/W 00h 15.2.6/412
3086 SCI Control Register 3 (SCI0_C3) 8 R/W 00h 15.2.7/414
3087 SCI Data Register (SCI0_D) 8 R/W 00h 15.2.8/415
3088 SCI Baud Rate Register: High (SCI1_BDH) 8 R/W 00h 15.2.1/406
3089 SCI Baud Rate Register: Low (SCI1_BDL) 8 R/W 04h 15.2.2/407
308A SCI Control Register 1 (SCI1_C1) 8 R/W 00h 15.2.3/408
308B SCI Control Register 2 (SCI1_C2) 8 R/W 00h 15.2.4/409
308C SCI Status Register 1 (SCI1_S1) 8 R C0h 15.2.5/410
308D SCI Status Register 2 (SCI1_S2) 8 R/W 00h 15.2.6/412
308E SCI Control Register 3 (SCI1_C3) 8 R/W 00h 15.2.7/414
308F SCI Data Register (SCI1_D) 8 R/W 00h 15.2.8/415
3090 SCI Baud Rate Register: High (SCI2_BDH) 8 R/W 00h 15.2.1/406
3091 SCI Baud Rate Register: Low (SCI2_BDL) 8 R/W 04h 15.2.2/407
3092 SCI Control Register 1 (SCI2_C1) 8 R/W 00h 15.2.3/408
3093 SCI Control Register 2 (SCI2_C2) 8 R/W 00h 15.2.4/409
3094 SCI Status Register 1 (SCI2_S1) 8 R C0h 15.2.5/410
3095 SCI Status Register 2 (SCI2_S2) 8 R/W 00h 15.2.6/412
3096 SCI Control Register 3 (SCI2_C3) 8 R/W 00h 15.2.7/414
3097 SCI Data Register (SCI2_D) 8 R/W 00h 15.2.8/415
15.2.1 SCI Baud Rate Register: High (SCIx_BDH)
This register, along with SCI_BDL, controls the prescale divisor for SCI baud rate
generation. To update the 13-bit baud rate setting [SBR12:SBR0], first write to
SCI_BDH to buffer the high half of the new value and then write to SCI_BDL. The
working value in SCI_BDH does not change until SCI_BDL is written.
Address: Base address + 0h offset
Bit 7 6 5 4 3 2 1 0
Read
LBKDIE RXEDGIE SBNS SBR
Write
Reset
0 0 0 0 0 0 0 0
Register definition
MC9S08PA60 Reference Manual, Rev. 1, 9/2012
406 Freescale Semiconductor, Inc.