MSP430F5529, MSP430F5528, MSP430F5527, MSP430F5526
MSP430F5525, MSP430F5524, MSP430F5522, MSP430F5521
MSP430F5519, MSP430F5517, MSP430F5515, MSP430F5514, MSP430F5513
SLAS590M – MARCH 2009 – REVISED NOVEMBER 2015
www.ti.com
Table 6-8. Default Mapping
PIN
PxMAPy MNEMONIC
INPUT PIN FUNCTION
OUTPUT PIN FUNCTION
USCI_B1 SPI slave transmit enable (direction controlled by USCI)
P4.0/P4MAP0
PM_UCB1STE/PM_UCA1CLK
USCI_A1 clock input/output (direction controlled by USCI)
USCI_B1 SPI slave in master out (direction controlled by USCI)
P4.1/P4MAP1
PM_UCB1SIMO/PM_UCB1SDA
USCI_B1 I
2
C data (open drain and direction controlled by USCI)
USCI_B1 SPI slave out master in (direction controlled by USCI)
P4.2/P4MAP2
PM_UCB1SOMI/PM_UCB1SCL
USCI_B1 I
2
C clock (open drain and direction controlled by USCI)
USCI_A1 SPI slave transmit enable (direction controlled by USCI)
P4.3/P4MAP3
PM_UCB1CLK/PM_UCA1STE
USCI_B1 clock input/output (direction controlled by USCI)
USCI_A1 UART TXD (Direction controlled by USCI – output)
P4.4/P4MAP4
PM_UCA1TXD/PM_UCA1SIMO
USCI_A1 SPI slave in master out (direction controlled by USCI)
USCI_A1 UART RXD (Direction controlled by USCI – input)
P4.5/P4MAP5
PM_UCA1RXD/PM_UCA1SOMI
USCI_A1 SPI slave out master in (direction controlled by USCI)
P4.6/P4MAP6
PM_NONE
None
DVSS
P4.7/P4MAP7
PM_NONE
None
DVSS
6.9.3
Oscillator and System Clock
(Link to User's Guide)
The clock system in the MSP430F552x and MSP430F551x family of devices is supported by the Unified
Clock System (UCS) module that includes support for a 32-kHz watch crystal oscillator (XT1 LF mode)
(XT1 HF mode is not supported), an internal very-low-power low-frequency oscillator (VLO), an internal
trimmed low-frequency oscillator (REFO), an integrated internal digitally controlled oscillator (DCO), and a
high-frequency crystal oscillator (XT2). The UCS module is designed to meet the requirements of both low
system cost and low power consumption. The UCS module features digital frequency locked loop (FLL)
hardware that, in conjunction with a digital modulator, stabilizes the DCO frequency to a programmable
multiple of the selected FLL reference frequency. The internal DCO provides a fast turnon clock source
and stabilizes in 3.5 µs (typical). The UCS module provides the following clock signals:
•
Auxiliary clock (ACLK), sourced from a 32-kHz watch crystal (XT1), a high-frequency crystal (XT2), the
internal low-frequency oscillator (VLO), the trimmed low-frequency oscillator (REFO), or the internal
digitally controlled oscillator DCO.
•
Main clock (MCLK), the system clock used by the CPU. MCLK can be sourced by same sources made
available to ACLK.
•
Sub-Main clock (SMCLK), the subsystem clock used by the peripheral modules. SMCLK can be
sourced by same sources made available to ACLK.
•
ACLK/n, the buffered output of ACLK, ACLK/2, ACLK/4, ACLK/8, ACLK/16, ACLK/32.
6.9.4
Power Management Module (PMM)
(Link to User's Guide)
The PMM includes an integrated voltage regulator that supplies the core voltage to the device and
contains programmable output levels to provide for power optimization. The PMM also includes supply
voltage supervisor (SVS) and supply voltage monitoring (SVM) circuitry, as well as brownout protection.
The brownout circuit is implemented to provide the proper internal reset signal to the device during power
on and power off. The SVS and SVM circuitry detects if the supply voltage drops below a user-selectable
level and supports both supply voltage supervision (SVS) (the device is automatically reset) and supply
voltage monitoring (SVM) (the device is not automatically reset). SVS and SVM circuitry is available on the
primary supply and core supply.
6.9.5
Hardware Multiplier
(Link to User's Guide)
The multiplication operation is supported by a dedicated peripheral module. The module performs
operations with 32-, 24-, 16-, and 8-bit operands. The module supports signed and unsigned multiplication
as well as signed and unsigned multiply-and-accumulate operations.
58
Detailed Description
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MSP430F5529 MSP430F5528 MSP430F5527 MSP430F5526 MSP430F5525 MSP430F5524
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Содержание MSP430F5527
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