C8051F365-GM Silicon Laboratories Inc, C8051F365-GM Datasheet - Page 265
![IC 8051 MCU 32K FLASH 28-QFN](/photos/12/27/122713/c8051f365-gm_sml.jpg)
C8051F365-GM
Manufacturer Part Number
C8051F365-GM
Description
IC 8051 MCU 32K FLASH 28-QFN
Manufacturer
Silicon Laboratories Inc
Series
C8051F36xr
Specifications of C8051F365-GM
Program Memory Type
FLASH
Program Memory Size
32KB (32K x 8)
Package / Case
28-QFN
Core Processor
8051
Core Size
8-Bit
Speed
100MHz
Connectivity
SMBus (2-Wire/I²C), SPI, UART/USART
Peripherals
POR, PWM, Temp Sensor, WDT
Number Of I /o
25
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 3.6 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Processor Series
C8051F3x
Core
8051
Data Bus Width
8 bit
Data Ram Size
1 KB
Interface Type
I2C/SMBus/SPI/UART
Maximum Clock Frequency
100 MHz
Number Of Programmable I/os
25
Number Of Timers
4
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
KSK-SL-TOOLSTICK, PK51, CA51, A51, ULINK2
Development Tools By Supplier
C8051F360DK
Minimum Operating Temperature
- 40 C
Package
28QFN
Device Core
8051
Family Name
C8051F36x
Maximum Speed
100 MHz
Operating Supply Voltage
3.3 V
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
770-1006 - ISP 4PORT FOR SILABS C8051F MCU336-1410 - KIT DEV FOR C8051F360 FAMILY
Eeprom Size
-
Data Converters
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
336-1647
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
C8051F365-GM
Manufacturer:
SILICON LABS/芯科
Quantity:
20 000
- Current page: 265 of 288
- Download datasheet (3Mb)
22.1. PCA Counter/Timer
The 16-bit PCA counter/timer consists of two 8-bit SFRs: PCA0L and PCA0H. PCA0H is the high byte
(MSB) of the 16-bit counter/timer and PCA0L is the low byte (LSB). Reading PCA0L automatically latches
the value of PCA0H into a “snapshot” register; the following PCA0H read accesses this “snapshot” register.
Reading the PCA0L Register first guarantees an accurate reading of the entire 16-bit PCA0 counter. Read-
ing PCA0H or PCA0L does not disturb the counter operation. The CPS2–CPS0 bits in the PCA0MD regis-
ter select the timebase for the counter/timer as shown in Table 22.1.
When the counter/timer overflows from 0xFFFF to 0x0000, the Counter Overflow Flag (CF) in PCA0MD is
set to logic ‘1’ and an interrupt request is generated if CF interrupts are enabled. Setting the ECF bit in
PCA0MD to logic ‘1’ enables the CF flag to generate an interrupt request. The CF bit is not automatically
cleared by hardware when the CPU vectors to the interrupt service routine, and must be cleared by soft-
ware (Note: PCA0 interrupts must be globally enabled before CF interrupts are recognized. PCA0 inter-
rupts are globally enabled by setting the EA bit (IE.7) and the EPCA0 bit in EIE1 to logic ‘1’). Clearing the
CIDL bit in the PCA0MD register allows the PCA to continue normal operation while the CPU is in Idle
mode.
*Note: External clock divided by 8 is synchronized with the system clock.
SYSCLK/12
SYSCLK/4
Timer 0 Overflow
ECI
SYSCLK
External Clock/8
CPS2
0
0
0
0
1
1
1
1
C
D
L
I
W
D
T
E
CPS1
PCA0MD
W
D
C
K
L
0
0
1
1
0
0
1
1
C
P
S
2
000
001
010
011
100
101
C
P
S
1
C
P
S
0
Figure 22.2. PCA Counter/Timer Block Diagram
E
C
F
CPS0
Table 22.1. PCA Timebase Input Options
0
1
0
1
0
1
0
1
IDLE
C
F
C
R
PCA0CN
C
C
F
5
System clock divided by 12
System clock divided by 4
Timer 0 overflow
High-to-low transitions on ECI (max rate = system clock divided by 4)
System clock
External oscillator source divided by 8*
RESERVED
RESERVED
C
C
F
4
C
C
F
3
C
C
F
2
C
C
F
1
C
C
F
0
C8051F360/1/2/3/4/5/6/7/8/9
0
1
Rev. 1.0
PCA0L
read
Snapshot
Register
PCA0H
Timebase
PCA0L
To SFR Bus
To PCA Modules
Overflow
CF
To PCA Interrupt System
265
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