C8051F044-GQR Silicon Laboratories Inc, C8051F044-GQR Datasheet - Page 190
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C8051F044-GQR
Manufacturer Part Number
C8051F044-GQR
Description
IC 8051 MCU 64K FLASH 100TQFP
Manufacturer
Silicon Laboratories Inc
Series
C8051F04xr
Specifications of C8051F044-GQR
Core Processor
8051
Core Size
8-Bit
Speed
25MHz
Connectivity
CAN, EBI/EMI, SMBus (2-Wire/I²C), SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
Number Of I /o
64
Program Memory Size
64KB (64K x 8)
Program Memory Type
FLASH
Ram Size
4.25K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 3.6 V
Data Converters
A/D 13x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
100-TQFP, 100-VQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
C8051F044-GQR
Manufacturer:
Silicon Laboratories Inc
Quantity:
10 000
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C8051F040/1/2/3/4/5/6/7
190
Bits7-6:
Bit5:
Bit4:
Bits3-2:
Bits1-0:
R/W
Bit7
-
Unused. Read = 00b. Write = don’t care.
PRTSEL: EMIF Port Select.
0: EMIF active on P0-P3.
1: EMIF active on P4-P7.
EMD2: EMIF Multiplex Mode Select.
0: EMIF operates in multiplexed address/data mode.
1: EMIF operates in non-multiplexed mode (separate address and data pins).
EMD1-0: EMIF Operating Mode Select.
These bits control the operating mode of the External Memory Interface.
00: Internal Only: MOVX accesses on-chip XRAM only. All effective addresses alias to on-
01: Split Mode without Bank Select: Accesses below the 4k boundary are directed on-chip.
10: Split Mode with Bank Select: Accesses below the 4k boundary are directed on-chip.
11: External Only: MOVX accesses off-chip XRAM only. On-chip XRAM is not visible to the
EALE1-0: ALE Pulse-Width Select Bits (only has effect when EMD2 = 1).
00: ALE high and ALE low pulse width = 1 SYSCLK cycle.
01: ALE high and ALE low pulse width = 2 SYSCLK cycles.
10: ALE high and ALE low pulse width = 3 SYSCLK cycles.
11: ALE high and ALE low pulse width = 4 SYSCLK cycles.
SFR Definition 16.2. EMI0CF: External Memory Configuration
chip memory space.
Accesses above the 4k boundary are directed off-chip. 8-bit off-chip MOVX operations
use the current contents of the Address High port latches to resolve upper address byte.
Note that in order to access off-chip space, EMI0CN must be set to a page that is not
contained in the on-chip address space.
Accesses above the 4k boundary are directed off-chip. 8-bit off-chip MOVX operations
use the contents of EMI0CN to determine the high-byte of the address.
CPU.
R/W
Bit6
-
PRTSEL
R/W
Bit5
EMD2
R/W
Bit4
Rev. 1.5
EMD1
R/W
Bit3
EMD0
R/W
Bit2
EALE1
R/W
Bit1
SFR Address:
SFR Page:
EALE0
R/W
Bit0
0xA3
0
00000011
Reset Value
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