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TMPR3911 Datasheet(PDF) 71 Page - Toshiba Semiconductor

Part # TMPR3911
Description  32-Bit TX System RISC TX39 Family
PDF  462 Pages
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Manufacturer  TOSHIBA [Toshiba Semiconductor]
Direct Link  http://www.semicon.toshiba.co.jp/eng
Logo TOSHIBA - Toshiba Semiconductor

TMPR3911 Datasheet(HTML) 71 Page - Toshiba Semiconductor

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Chapter 2 Pin Descriptions
2-17
Table 2.3.4 lists various power-down states and conditions for each TMPR3911/12 pin. The “Power-Down
Control” column shows the conditions which trigger a power-down for each respective pin. This column also
shows the reset state for each of these conditions.
The “PON* state” column defines the state of each pin at power-on reset (PON*). This condition is
defined as initial power up of the TMPR3911/12. This state is entered after power is applied for the very first
time (VSTANDBY is turned on but VCC3 is still turned off). See figure 12.2.2.
The “1st-time power-up state” column defines the state of each pin after power-up. This mode is defined
as VCC3 applied to the entire system and is initiated by the user pressing the ONBUTN while in the power-
on reset (PON*) state. See figure 12.2.2.
The “power-down state” column defines the state of each pin during power-down mode.
Table 2.3.4 TMPR3911/12 Power-Down Pin Mode (1/3)
TMPR3911/12 pin
PON* state
1st time
power-up
state
power-down
state
Power-Down Control
D[31:0]
LOW
LOW
LOW
MEMPOWERDOWN
A[12:0]
LOW
LOW
LOW
MEMPOWERDOWN
ALE
LOW
LOW
LOW
X
RD*
LOW
HI
LOW
POWERDOWN
WE*
LOW
LOW
LOW
MEMPOWERDOWN
CAS0* (WE0*)
LOW
LOW
LOW
MEMPOWERDOWN
CAS1* (WE1*)
LOW
LOW
LOW
MEMPOWERDOWN
CAS2* (WE2*)
LOW
LOW
LOW
MEMPOWERDOWN
CAS3* (WE3*)
LOW
LOW
LOW
MEMPOWERDOWN
RAS0*
LOW
LOW
LOW
MEMPOWERDOWN
RAS1* (DCS1*)
LOW
LOW
LOW
MEMPOWERDOWN
DCS0*
LOW
LOW
LOW
MEMPOWERDOWN
DCKE
LOW
LOW
LOW
MEMPOWERDOWN
DCLKIN*
IN
IN
IN
X
DCLKOUT
LOW
LOW
LOW
MEMPOWERDOWN
DQMH
LOW
LOW
LOW
MEMPOWERDOWN
DQML
LOW
LOW
LOW
MEMPOWERDOWN
DREQ
PULL-DOWN
IN
SELECTABLE
POWERDOWN & MIOPD[27]
DGRNT*
LOW
HI
SELECTABLE
POWERDOWN & MIOPD[26]
SYSCLKIN
OSC OFF
OSC ON
OSC OFF
POWERDOWN
SYSCLKOUT
OSC OFF
OSC ON
OSC OFF
POWERDOWN
C32KIN
OSC ON
OSC ON
OSC ON
X
C32KOUT
OSC ON
OSC ON
OSC ON
X
BC32K
PULL-DOWN
IN
SELECTABLE
POWERDOWN & MIOPD[25]
VDAT[3]
LOW
LOW
LOW
video module disabled
VDAT[2]
LOW
LOW
LOW
video module disabled
VDAT[1]
LOW
LOW
LOW
video module disabled
VDAT[0]
LOW
LOW
LOW
video module disabled
POWERDOWN = (VCCON & VCC3)*
VCCON: a bit in the Power Control Register.
VCC3: an input signal.
MEMPOWERDOWN: a bit in the Memory Configration 4 Register.
SELECTABLE: See Table 9.2.2 and 9.2.3.



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