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Texas Instruments AM335 Series Technical Reference Manual

Texas Instruments AM335 Series
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Table 19-2. UART0 Connectivity Attributes (continued)
Attributes Type
Reset Signals WKUP_DOM_RST_N
Idle/Wakeup Signals Smart Idle / Wakeup
Interrupt Requests 1 interrupt to MPU Subsystem (UART0INT), PRU-ICSS (nirq)
and WakeM3
DMA Requests 2 DMA requests to EDMA (TX UTXEVT0, RX URXEVT0)
Physical Address L4 Wakeup slave port
Table 19-3. UART1–5 Connectivity Attributes
Attributes Type
Power Domain Peripheral Domain
Clock Domain PD_PER_L4LS_GCLK (OCP)
PD_PER_UART_GFCLK (Func)
Reset Signals PER_DOM_RST_N
Idle/Wakeup Signals Smart Idle
Interrupt Requests
UART1-2
1 interrupt per instance to MPU Subsystem (UART1INT,
UART2INT) and PRU-ICSS (nirq)
UART3-5
1 interrupt per instance to only MPU Subsystem (UART3INT,
UART4INT, UART5INT)
DMA Requests 2 DMA requests per instance to EDMA (TX UTXEVTx, RX
URXEVTx)
Physical Address L4 Peripheral slave port
19.2.2 UART Clock and Reset Management
The UART modules use separate functional and bus interface clocks.
Table 19-4. UART0 Clock Signals
Clock Signal Max Freq Reference / Source Comments
CLK 100 MHz CORE_CLKOUTM4 / 2 pd_wkup_l4_wkup_gclk
Interface clock
From PRCM
FCLK 48 MHz PER_CLKOUTM2 / 4 pd_wkup_uart0_gfclk
Functional clock
From PRCM
Table 19-5. UART1–5 Clock Signals
Clock Signal Max Freq Reference / Source Comments
CLK 100 MHz CORE_CLKOUTM4 / 2 pd_per_l4ls_gclk
Interface clock From PRCM
FCLK 48 MHz PER_CLKOUTM2 / 4 pd_per_uart_gfclk
Functional clock From PRCM
For UART operation, the functional clock is used to produce a baud rate up to 3.6M bits/s. Table 19-6 lists
the supported baud rates, the requested divider, and the corresponding error versus the standard baud
rate.
3450
Universal Asynchronous Receiver/Transmitter (UART) SPRUH73HOctober 2011Revised April 2013
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Texas Instruments AM335 Series Specifications

General IconGeneral
BrandTexas Instruments
ModelAM335 Series
CategoryComputer Hardware
LanguageEnglish

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