c8051t623-g Silicon Laboratories, c8051t623-g Datasheet - Page 90
c8051t623-g
Manufacturer Part Number
c8051t623-g
Description
Full Speed Usb Eprom Mcu Family
Manufacturer
Silicon Laboratories
Datasheet
1.C8051T623-G.pdf
(247 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
c8051t623-gM
Manufacturer:
Silicon
Quantity:
68
- Current page: 90 of 247
- Download datasheet (2Mb)
17. Port Input/Output
Digital and analog resources are available through 16 or 15 I/O pins, depending on the specific device.
Port pins P0.0-P1.6 can be defined as general-purpose I/O (GPIO), assigned to one of the internal digital
resources, or assigned to an analog function as shown in Figure 17.3. Port pin P2.0 on can be used as
GPIO and is shared with the C2 Interface Data signal (C2D). The designer has complete control over
which functions are assigned, limited only by the number of physical I/O pins. This resource assignment
flexibility is achieved through the use of a Priority Crossbar Decoder. Note that the state of a Port I/O pin
can always be read in the corresponding Port latch, regardless of the Crossbar settings.
The Crossbar assigns the selected internal digital resources to the I/O pins based on the Priority Decoder
(Figure 17.4). The registers XBR0, XBR1, and XBR2, defined in SFR Definition 17.1, SFR Definition 17.2,
and SFR Definition 17.2, are used to select internal digital functions.
All Port I/Os are 5 V tolerant (refer to Figure 17.2 for the Port cell circuit). The Port I/O cells are configured
as either push-pull or open-drain in the Port Output Mode registers (PnMDOUT, where n = 0,1). Complete
Electrical Specifications for Port I/O are given in Table 6.3 on page 30
Highest
Priority
Lowest
Priority
SYSCLK
UART0
SMBus
UART1
T0, T1
P0 (P0.0-P0.7)
P1
P2
PCA
SPI
Figure 17.1. Port I/O Functional Block Diagram
(P1.0-P1.6)
(P2.0)
2
4
2
4
2
2
8
7
1
C8051T622/3 and C8051T326/7
Rev. 1.1
XBR2, PnSKIP
XBR0, XBR1,
Crossbar
Decoder
Registers
Priority
Digital
1
Note: Not available on C8051T326/7 devices.
8
7
P0MASK, P0MAT
P1MASK, P1MAT
Port Match
Cells
Cells
Cell
P0
I/O
P1
I/O
P2
I/O
External Interrupts
PnMDIN Registers
EX0 and EX1
PnMDOUT,
P0.0
P0.7
P1.0
P1.6
P2.0
1
97
Related parts for c8051t623-g
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
SMD/C°/SINGLE-ENDED OUTPUT SILICON OSCILLATOR
Manufacturer:
Silicon Laboratories Inc
Part Number:
Description:
Manufacturer:
Silicon Laboratories Inc
Datasheet:
Part Number:
Description:
N/A N/A/SI4010 AES KEYFOB DEMO WITH LCD RX
Manufacturer:
Silicon Laboratories Inc
Datasheet:
Part Number:
Description:
N/A N/A/SI4010 SIMPLIFIED KEY FOB DEMO WITH LED RX
Manufacturer:
Silicon Laboratories Inc
Datasheet:
Part Number:
Description:
N/A/-40 TO 85 OC/EZLINK MODULE; F930/4432 HIGH BAND (REV E/B1)
Manufacturer:
Silicon Laboratories Inc
Part Number:
Description:
EZLink Module; F930/4432 Low Band (rev e/B1)
Manufacturer:
Silicon Laboratories Inc
Part Number:
Description:
I°/4460 10 DBM RADIO TEST CARD 434 MHZ
Manufacturer:
Silicon Laboratories Inc
Part Number:
Description:
I°/4461 14 DBM RADIO TEST CARD 868 MHZ
Manufacturer:
Silicon Laboratories Inc
Part Number:
Description:
I°/4463 20 DBM RFSWITCH RADIO TEST CARD 460 MHZ
Manufacturer:
Silicon Laboratories Inc
Part Number:
Description:
I°/4463 20 DBM RADIO TEST CARD 868 MHZ
Manufacturer:
Silicon Laboratories Inc
Part Number:
Description:
I°/4463 27 DBM RADIO TEST CARD 868 MHZ
Manufacturer:
Silicon Laboratories Inc
Part Number:
Description:
I°/4463 SKYWORKS 30 DBM RADIO TEST CARD 915 MHZ
Manufacturer:
Silicon Laboratories Inc
Part Number:
Description:
N/A N/A/-40 TO 85 OC/4463 RFMD 30 DBM RADIO TEST CARD 915 MHZ
Manufacturer:
Silicon Laboratories Inc
Part Number:
Description:
I°/4463 20 DBM RADIO TEST CARD 169 MHZ
Manufacturer:
Silicon Laboratories Inc