TMS320C6745PTP2 datasheet(22/203 Pages) TI

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3.6.3

Real-Time Clock and 32-kHz Oscillator

3.6.4

External Memory Interface A (ASYNC, SDRAM)

TMS320C6745/6747 Floating-point Digital Signal Processor

SPRS377B – SEPTEMBER 2008 – REVISED DECEMBER 2008

www.ti.com

Table 3-6. Real-Time Clock (RTC) and 1.2-V, 32-kHz Oscillator Terminal Functions

PIN NO

SIGNAL NAME

TYPE(1)

PULL(2)

DESCRIPTION

PTP

ZKB

RTC_CVDD

PWR

RTC module core power ( isolated from rest of chip CVDD)

RTC_XI

Low-frequency (32-kHz) oscillator receiver for real-time clock

RTC_XO

Low-frequency (32-kHz) oscillator driver for real-time clock

RTC_Vss

GND

Oscillator ground (for filter)

(1)

I = Input, O = Output, I/O = Bidirectional, Z = High impedance, PWR = Supply voltage, GND = Ground, A = Analog signal.

Note: For multiplexed pins where functions have different types (ie., input versus output), the table reflects the pin function direction for

that particular peripheral.

(2)

IPD = Internal Pulldown resistor, IPU = Internal Pullup resistor

Table 3-7. External Memory Interface A (EMIFA) Terminal Functions

PIN NO

SIGNAL NAME

TYPE(1)

PULL(2)

MUXED

DESCRIPTION

PTP

ZKB

EMA_D[15]/UHPI_HD[15]/LCD_D[15]/GP0[15]

M16

I/O

IPD

EMA_D[14]/UHPI_HD[14]/LCD_D[14]/GP0[14]

N14

I/O

IPD

EMA_D[13]/UHPI_HD[13]/LCD_D[13]/GP0[13]

N16

I/O

IPD

EMA_D[12]/UHPI_HD[12]/LCD_D[12]/GP0[12]

P14

I/O

IPD

UHPI, LCD,

GPIO

EMA_D[11]/UHPI_HD[11]/LCD_D[11]/GP0[11]

P16

I/O

IPD

EMA_D[10]/UHPI_HD[10]/LCD_D[10]/GP0[10]

R14

I/O

IPD

EMA_D[9]/UHPI_HD[9]/LCD_D[9]/GP0[9]

T14

I/O

IPD

EMA_D[8]/UHPI_HD[8]/LCD_D[8]/GP0[8]

N12

I/O

IPD

MMC/SD,

EMA_D[7]/MMCSD_DAT[7]/UHPI_HD[7]/GP0[7]/BOOT[13]

M15

I/O

IPU

UHPI, GPIO,

EMIFA data bus

BOOT

EMA_D[6]/MMCSD_DAT[6]/UHPI_HD[6]/GP0[6]

N13

I/O

IPU

EMA_D[5]/MMCSD_DAT[5]/UHPI_HD[5]/GP0[5]

N15

I/O

IPU

EMA_D[4]/MMCSD_DAT[4]/UHPI_HD[4]/GP0[4]

P13

I/O

IPU

MMC/SD,

UHPI, GPIO

EMA_D[3]/MMCSD_DAT[3]/UHPI_HD[3]/GP0[3]

P15

I/O

IPU

EMA_D[2]/MMCSD_DAT[2]/UHPI_HD[2]/GP0[2]

R13

I/O

IPU

EMA_D[1]/MMCSD_DAT[1]/UHPI_HD[1]/GP0[1]

R15

I/O

IPU

MMC/SD,

EMA_D[0]/MMCSD_DAT[0]/UHPI_HD[0]/GP0[0]/BOOT[12]

T13

I/O

IPU

UHPI, GPIO,

BOOT

(1)

I = Input, O = Output, I/O = Bidirectional, Z = High impedance, PWR = Supply voltage, GND = Ground, A = Analog signal.

Note: The pin type shown refers to the input, output or high-impedance state of the pin function when configured as the the signal name

highlighted in bold. All multiplexed signals may enter a high-impedance state when the configured function is input-only or the configured

function supports high-Z operation. All GPIO signals can be used as input or output. For multiplexed pins where functions have different

types (ie., input versus output), the table reflects the pin function direction for that particular peripheral.

(2)

IPD = Internal Pulldown resistor, IPU = Internal Pullup resistor

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