C8051F340/1/2/3/4/5/6/7
Table 9.3. Special Function Registers
SFRs are listed in alphabetical order. All undefined SFR locations are reserved.
Register | Address | Description | Page |
ACC | 0xE0 | Accumulator | 86 |
ADC0CF | 0xBC | ADC0 Configuration | 50 |
ADC0CN | 0xE8 | ADC0 Control | 51 |
ADC0GTH | 0xC4 | ADC0 | 52 |
ADC0GTL | 0xC3 | ADC0 | 52 |
ADC0H | 0xBE | ADC0 High | 50 |
ADC0L | 0xBD | ADC0 Low | 50 |
ADC0LTH | 0xC6 | ADC0 | 53 |
ADC0LTL | 0xC5 | ADC0 | 53 |
AMX0N | 0xBA | AMUX0 Negative Channel Select | 49 |
AMX0P | 0xBB | AMUX0 Positive Channel Select | 48 |
B | 0xF0 | B Register | 87 |
CKCON | 0x8E | Clock Control | 249 |
CLKMUL | 0xB9 | Clock Multiplier | 142 |
CLKSEL | 0xA9 | Clock Select | 144 |
CPT0CN | 0x9B | Comparator0 Control | 62 |
CPT0MD | 0x9D | Comparator0 Mode Selection | 64 |
CPT0MX | 0x9F | Comparator0 MUX Selection | 63 |
CPT1CN | 0x9A | Comparator1 Control | 65 |
CPT1MD | 0x9C | Comparator1 Mode Selection | 67 |
CPT1MX | 0x9E | Comparator1 MUX Selection | 66 |
DPH | 0x83 | Data Pointer High | 85 |
DPL | 0x82 | Data Pointer Low | 85 |
EIE1 | 0xE6 | Extended Interrupt Enable 1 | 92 |
EIE2 | 0xE7 | Extended Interrupt Enable 2 | 94 |
EIP1 | 0xF6 | Extended Interrupt Priority 1 | 93 |
EIP2 | 0xF7 | Extended Interrupt Priority 2 | 94 |
EMI0CN | 0xAA | External Memory Interface Control | 120 |
EMI0CF | 0x85 | External Memory Interface Configuration | 121 |
EMI0TC | 0x84 | External Memory Interface Timing | 126 |
FLKEY | 0xB7 | Flash Lock and Key | 114 |
FLSCL | 0xB6 | Flash Scale | 115 |
IE | 0xA8 | Interrupt Enable | 90 |
IP | 0xB8 | Interrupt Priority | 91 |
IT01CF | 0xE4 | INT0/INT1 Configuration | 95 |
OSCICL | 0xB3 | Internal Oscillator Calibration | 137 |
OSCICN | 0xB2 | Internal Oscillator Control | 136 |
OSCLCN | 0x86 | Internal | 138 |
OSCXCN | 0xB1 | External Oscillator Control | 141 |
P0 | 0x80 | Port 0 Latch | 154 |
P0MDIN | 0xF1 | Port 0 Input Mode Configuration | 154 |
P0MDOUT | 0xA4 | Port 0 Output Mode Configuration | 155 |
P0SKIP | 0xD4 | Port 0 Skip | 155 |
P1 | 0x90 | Port 1 Latch | 156 |
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82 | Rev. 0.5 |