C8051F502-IQ Silicon Laboratories Inc, C8051F502-IQ Datasheet - Page 191
![IC 8051 MCU 64K FLASH 32-QFP](/photos/12/17/121746/c8051f502-iq_sml.jpg)
C8051F502-IQ
Manufacturer Part Number
C8051F502-IQ
Description
IC 8051 MCU 64K FLASH 32-QFP
Manufacturer
Silicon Laboratories Inc
Series
C8051F50xr
Datasheets
1.C8051F507-IM.pdf
(312 pages)
2.C8051F502-IM.pdf
(1 pages)
3.C8051F503-IM.pdf
(312 pages)
Specifications of C8051F502-IQ
Program Memory Type
FLASH
Program Memory Size
64KB (64K x 8)
Package / Case
32-QFP
Mfg Application Notes
LIN Bootloader AppNote
Core Processor
8051
Core Size
8-Bit
Speed
50MHz
Connectivity
SMBus (2-Wire/I²C), CAN, LIN, SPI, UART/USART
Peripherals
POR, PWM, Temp Sensor, WDT
Number Of I /o
25
Ram Size
4.25K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.25 V
Data Converters
A/D 25x12b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Processor Series
C8051F5x
Core
8051
Data Bus Width
8 bit
Data Ram Size
4.25 KB
Interface Type
I2C, SPI, UART
Maximum Clock Frequency
50 MHz
Number Of Programmable I/os
25
Number Of Timers
4
Maximum Operating Temperature
+ 125 C
Mounting Style
SMD/SMT
3rd Party Development Tools
PK51, CA51, A51, ULINK2
Development Tools By Supplier
C8051F500DK
Minimum Operating Temperature
- 40 C
On-chip Adc
12 bit, 32 Channel
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
336-1559 - KIT REF DESIGN CAN DIAGNOSTIC336-1532 - ADAPTER PROG TOOLSTICK F502336-1531 - PLATFORM PROG TOOLSTCK F502336-1528 - DAUGHTER CARD TOOLSTICK F500336-1527 - KIT DEV FOR C8051F50X
Eeprom Size
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
336-1514
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
C8051F502-IQ
Manufacturer:
Silicon Laboratories Inc
Quantity:
10 000
Company:
Part Number:
C8051F502-IQR
Manufacturer:
RUBYCON
Quantity:
20 000
Company:
Part Number:
C8051F502-IQR
Manufacturer:
Silicon Laboratories Inc
Quantity:
10 000
- Current page: 191 of 312
- Download datasheet (3Mb)
20.6. Special Function Registers for Accessing and Configuring Port I/O
All Port I/O are accessed through corresponding special function registers (SFRs) that are both byte
addressable and bit addressable, except for P4 which is only byte addressable. When writing to a Port, the
value written to the SFR is latched to maintain the output data value at each pin. When reading, the logic
levels of the Port's input pins are returned regardless of the XBRn settings (i.e., even when the pin is
assigned to another signal by the Crossbar, the Port register can always read its corresponding Port I/O
pin). The exception to this is the execution of the read-modify-write instructions that target a Port Latch reg-
ister as the destination. The read-modify-write instructions when operating on a Port SFR are the following:
ANL, ORL, XRL, JBC, CPL, INC, DEC, DJNZ and MOV, CLR or SETB, when the destination is an individ-
ual bit in a Port SFR. For these instructions, the value of the latch register (not the pin) is read, modified,
and written back to the SFR.
Ports 0–3 have a corresponding PnSKIP register which allows its individual Port pins to be assigned to dig-
ital functions or skipped by the Crossbar. All Port pins used for analog functions, GPIO, or dedicated digital
functions such as the EMIF should have their PnSKIP bit set to 1.
The Port input mode of the I/O pins is defined using the Port Input Mode registers (PnMDIN). Each Port
cell can be configured for analog or digital I/O. This selection is required even for the digital resources
selected in the XBRn registers, and is not automatic. The only exception to this is P4, which can only be
used for digital I/O.
The output driver characteristics of the I/O pins are defined using the Port Output Mode registers (PnMD-
OUT). Each Port Output driver can be configured as either open drain or push-pull. This selection is
required even for the digital resources selected in the XBRn registers, and is not automatic. The only
exception to this is the SMBus (SDA, SCL) pins, which are configured as open-drain regardless of the
PnMDOUT settings.
SFR Definition 20.12. P0: Port 0
SFR Address = 0x80; SFR Page = All Pages; Bit-Addressable
Reset
Name
Bit
7:0
Type
Bit
P0[7:0]
Name
7
1
Port 0 Data.
Sets the Port latch logic
value or reads the Port pin
logic state in Port cells con-
figured for digital I/O.
1
6
Description
5
1
Rev. 1.1
0: Set output latch to logic
LOW.
1: Set output latch to logic
HIGH.
4
1
P0[7:0]
R/W
Write
3
1
C8051F50x-F51x
2
1
0: P0.n Port pin is logic
LOW.
1: P0.n Port pin is logic
HIGH.
1
1
Read
0
1
191
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