MK30DN512ZVLK10 Freescale Semiconductor, MK30DN512ZVLK10 Datasheet - Page 1188

• Manufacturer Part Number: MK30DN512ZVLK10
• Description: ARM Microcontrollers - MCU KINETIS 512K SLCD
• Manufacturer: Freescale Semiconductor

Specifications of MK30DN512ZVLK10

• Core: ARM Cortex M4
• Processor Series: K30
• Data Bus Width: 32 bit
• Maximum Clock Frequency: 50 MHz
• Program Memory Size: 512 KB
• Data Ram Size: 128 KB
• On-chip Adc: Yes
• Operating Supply Voltage: 1.71 V to 3.6 V
• Operating Temperature Range: - 40 C to + 105 C
• Package / Case: LQFP-80
• Mounting Style: SMD/SMT

Memory map and registers
44.3.19 UART FIFO Transmit Watermark (UARTx_TWFIFO)
This register provides the ability to set a programmable threshold for notification of
needing additional transmit data. This register may be read at any time but should only be
written when C2[TE] is not set. Changing the value of the watermark will not clear the
S1[TDRE] flag.
Addresses: UART0_TWFIFO is 4006_A000h base + 13h offset = 4006_A013h
44.3.20 UART FIFO Transmit Count (UARTx_TCFIFO)
This is a read only register that indicates how many datawords are currently in the
transmit buffer/FIFO. It may be read at anytime.
Addresses: UART0_TCFIFO is 4006_A000h base + 14h offset = 4006_A014h
1188
TXWATER
Reset
Field
Reset
Read
7–0
Read
Write
Write
Bit
Bit
UART1_TWFIFO is 4006_B000h base + 13h offset = 4006_B013h
UART2_TWFIFO is 4006_C000h base + 13h offset = 4006_C013h
UART3_TWFIFO is 4006_D000h base + 13h offset = 4006_D013h
UART1_TCFIFO is 4006_B000h base + 14h offset = 4006_B014h
UART2_TCFIFO is 4006_C000h base + 14h offset = 4006_C014h
UART3_TCFIFO is 4006_D000h base + 14h offset = 4006_D014h
Transmit Watermark
When the number of datawords in the transmit FIFO/buffer is equal to or less than the value in this
register field then an interrupt via S1[TDRE] or a DMA request via C5[TDMAS] will be generated as
determined by C5[TDMAS] and C2[TIE] fields. For proper operation the value in the TXWATER field must
be set to be less than the size of the transmit buffer/FIFO size as indicated by PFIFO[TXFIFOSIZE] and
PFIFO[TXFE].
7
0
7
0
K30 Sub-Family Reference Manual, Rev. 6, Nov 2011
0
0
6
6
UARTx_TWFIFO field descriptions
0
0
5
5
0
0
4
4
TXWATER
TXCOUNT
Description
0
0
3
3
0
0
2
2
Freescale Semiconductor, Inc.
0
0
1
1
0
0
0
0