ml675050 Oki Semiconductor, ml675050 Datasheet - Page 15

• Manufacturer Part Number: ml675050
• Description: Arm7tdmi Based Micro-controller For Ic Card Reader/writer
• Manufacturer: Oki Semiconductor

PIN DISCRIPTION (CLOCK, RESET, DEBUG SIGNALS)
Pin name
Clock/Reset
RESET_N
CORERESET_N CORE reset
PWRSTART
RESUME
SYSCLK_P
SYSCLK_N
RTCCLK_P
RTCCLK_N
Debugging support (JTAG)
TCK
TDI
TDO
TMS
NTRST
OKI Semiconductor
Discript in
FUNCTION
LIST
Reset input
Regulator
control
Resume from
Stand-by
Oscllation
(Main)
Oscllation
(RTC)
JTAG TCK
JTAG TDI
JTAG TDO
JTAG TMS
JTAG
Reset input
IO
O
O
O
O
I
I
I
I
I
I
I
I
I
Discript in detail
(Inside the parentheses the QFP pin number is shown)
Reset input
Do not assert after resume from stand-by mode.
(17)
Core reset input
Assert after resume from stand-by mode.
(45)
Regulator(VDDCORE) enable output.
Negate after stand-by mode.
(46)
Resume request
Input for return from standby.
(47)
Crystal connection or external clock input.
Connect a crystal(8MHz, 16MHz), if used, to
SYSCLK_P and SYSCLK_N.
It is also possible to input a direct clock
(8MHz, 16MHz).
(2)
Crystal connection.
When not using a crystal, leave this pin unconnected.
(3)
Crystal connection or external clock input.
Connect a crystal(32.768KHz), if used, to
RTCCLK_P and RTCCLK_N.
It is also possible to input a direct clock(32.768KHz).
(14)
Crystal connection.
When not using a crystal, leave this pin unconnected.
(15)
Debugging pin. Normally connect to ground level.
(5)
Debugging pin. Normally drive at High level.
(6)
Debugging pin. Normally leave open.
(7)
Debugging pin. Normally drive at High level.
(8)
Debugging pin. Normally connect to ground level.
(18)
Primary/
Secondary/
Tertiary
Primary
Primary
Primary
Primary
Primary
Primary
Primary
Primary
Primary
Primary
Primary
Primary
Primary
FEDL675050-02
ML675050
Logic
Negative
Negative
Positive
Positive/
Negative
-
-
-
-
Positive
Positive
Positive
Positive
Negative
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