C8051F226DK Silicon Laboratories Inc, C8051F226DK Datasheet - Page 68

• Manufacturer Part Number: C8051F226DK
• Description: DEV KIT F220/221/226/230/231/236
• Manufacturer: Silicon Laboratories Inc
• Type: MCUr

Specifications of C8051F226DK

• Contents: Evaluation Board, Power Supply, USB Cables, Adapter and Documentation
• Processor To Be Evaluated: C8051F22x and C8051F23x
• Interface Type: USB
• Silicon Manufacturer: Silicon Labs
• Core Architecture: 8051
• Silicon Core Number: C8051F226
• Silicon Family Name: C8051F2xx
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• For Use With/related Products: C8051F220, 221, 226, 230, 231, 236
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 336-1241

C8051F2xx
9.3.
The direct-access data memory locations from 0x80 to 0xFF constitute the special function registers
(SFRs). The SFRs provide control and data exchange with the CIP-51's resources and peripherals. The
CIP-51 duplicates the SFRs found in a typical 8051 implementation as well as implementing additional
SFRs used to configure and access the sub-systems unique to the MCU. This allows the addition of new
functionality while retaining compatibility with the MCS-51™ instruction set. Table 9.3 lists the SFRs imple-
mented in the CIP-51 System Controller.
The SFR registers are accessed anytime the direct addressing mode is used to access memory locations
from 0x80 to 0xFF. SFRs with addresses ending in 0x0 or 0x8 (e.g. P0, TCON, P1, SCON, IE, etc.) are bit-
addressable as well as byte-addressable.
addresses in the SFR space are reserved for future use. Accessing these areas will have an indetermi-
nate effect and should be avoided. Refer to the corresponding pages of the datasheet, as indicated in
Table 9.3, for a detailed description of each register.
Table 9.2. Special Function Register Memory Map
Notes:
68
E8
E0
D8
D0
C8
C0
B8
B0
A8
A0
F8
F0
98
90
88
80
1. C8051F230/1/6 Do not have these registers.
2. C8051F221/231 Does not have this register (32 pin package).
3. On the C8051F206 and C8051F226/236 only.
4. On the C8051F206 only (12-bit ADC)
Special Function Registers
Bit Addressable
ADC0CN
SPI0CN
T2CON
SCON
TCON
PSW
ACC
0(8)
P3
P2
P1
P0
IP
IE
B
1
P0MODE
OSCXCN
PRT0MX
REF0CN
TMOD
SBUF
1(9)
SP
P1MODE
SPI0CFG
PRT1MX
RCAP2L
OSCICN
DPL
2(A)
TL0
AMX0SL
P2MODE P3MODE
PRT2MX
RCAP2H
SPI0DAT
All other SFRs are byte-addressable only.
DPH
3(B)
TL1
Rev. 1.6
1
ADC0GTL
ADC0CF
PRT0CF
4(C)
TH0
TL2
1
2
4
ADC0GTH
SPI0CKR
SWCINT
PRT1CF
TH2
TH1
5(D)
1
ADC0LTL
CPT0CN
PRT2CF
ADC0L
CKCON
FLSCL
EIP1
EIE1
6(E)
4
4
Unoccupied
ADC0LTH
EMI0CN
RSTSRC
CPT1CN
ADC0H
PRT3CF
WDTCN
PSCTL
FLACL
PCON
EIP2
EIE2
7(F)
1
3
1