OMAP-L137
SPRS563G – SEPTEMBER 2008 – REVISED JUNE 2014
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3.7.3
Real-Time Clock and 32-kHz Oscillator
Table 3-7. Real-Time Clock (RTC) and 1.2-V, 32-kHz Oscillator Terminal Functions
PIN NO
SIGNAL NAME
TYPE
(1)
PULL
(2)
DESCRIPTION
ZKB
RTC_CVDD
G1
PWR
RTC module core power (isolated from rest of chip CV
DD
)
RTC_XI
H1
I
Low-frequency (32-kHz) oscillator receiver for real-time clock
RTC_XO
H2
O
Low-frequency (32-kHz) oscillator driver for real-time clock
RTC_V
ss
G2
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
3.7.4
External Memory Interface A (ASYNC, SDRAM)
Table 3-8. External Memory Interface A (EMIFA) Terminal Functions
PIN
NO
SIGNAL NAME
TYPE
(1)
PULL
(2)
MUXED
DESCRIPTION
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, UHPI, EMIFA data bus
EMA_D[7]
/MMCSD_DAT[7]/UHPI_HD[7]/GP0[7]/BOOT[13]
M15
I/O
IPU
GPIO, 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, UHPI,
EMA_D[0]
/MMCSD_DAT[0]/UHPI_HD[0]/GP0[0]/BOOT[12]
T13
I/O
IPU
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
28
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