Connect Tech CTIM-00044 PLD Registers, Offset Reg Name Valid Bit Descriptions Reset Values Hex

Connect Tech Blue Heat/Net Sync User Manual

PLD Registers:

Offset

Reg Name

R/W

Valid

Bit Descriptions

Reset

Bit

Values

(Hex)

1000

RTCU

R/W

D15..0

Control Bits: Read/Write only as a 16 Bit word.

0000

Real Time Clock

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

0

Upper

Msk1

MP

MPP

MPO

IntEN

SE

EXT

ME

Msk0

X

X

H4

H3

H2

H1

H0

Msk1:

On writes, set this bit to mask bits 14..8. This prevents previous settings of bits 14..8 from being changed.

MP:

Minute Pulse (read only): Current State of Minute-Pulse signal (at the time of the read).

MPP:

Minute Pulse Pending (read only): This bit is set to the same state as the MPO bit (when the MPO bit is written). When the MPO is

written high, this bit goes low (=0) when the next selected Minute-Pulse edge occurs.

MPO:

Minute Pulse Once: When low (=0), the selected Minute-Pulse edge always resets the Seconds value. When high (=1) the RTC

increment is inhibited, then when the first selected

Minute-Pulse edge occurs, the Seconds value will be zeroed, the MPP bit will be

cleared and the RTC increment will be enabled. All subsequent Minute-Pulses edges will be ignored.

IntEN:

Clock Interrupt Enable: Enable an interrupt to occur on each clock increment pulse. The Interrupt is cleared by reading (or writing) the

RTC Lower Word (the Minutes/Seconds counter) or by disabling the interrupt. There is a dedicated interrupt signal to the Coldfire for

the RTC interrupt.

SE:

Seconds-Pulse Edge Select: Selects the edge (of the Seconds-Pulse) which causes the RTC increment, 0=falling, 1=rising.

EXT:

External Time Base Select: 0=Internal Timebase (1 Hz), 1=External Timebase.

ME:

Minute Edge select: Selects the edge (of the Minute-Pulse) which causes the RTC Seconds counter to be reset, 0=falling, 1=rising

Msk0:

On writes, set this bit to mask bits 6..0. This prevents previous settings of bits 6..0 from being changed.

H4..0

Hours Setting, or reading (a number between 0 and 23).

1002

RTCL

R/W

D15..0

Control Bits: Read/Write only as a 16 Bit word.

0000

Real Time Clock

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

0

Lower

Msk

X

M5

M4

M3

M2

M1

M0

Msk

X

S5

S4

S3

S2

S1

S0

1

0

Msk1:

On writes, set this bit to mask bits 14..8. This prevents previous settings of bits 14..8 from being changed.

M5..0:

Minute Setting, or reading (a number between 0 and 59)

Msk0:

On writes, set this bit to mask bits 6..0. This prevents previous settings of bits 6..0 from being changed.

S5..0

Second Setting, or reading (a number between 0 and 59).

1004

LEDC

R/W

D15..0

Control Bits: Read/Write only as a 16 Bit word.

LED Control

Auto Flash Mode

Direct Mode

Register

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

0

0000

X

X

X

X

X

X

X

X

P4

P3

P2

P1

P4

P3

P2

P1

P4, P4, P2, P1

Port numbers

Direct Mode:

1= LED on, 0 = LED off

Auto Flash Mode:

1=LED on for 40ms / off for 40ms, 0=No effect

X=

Don‟t care, fixed to 0.

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