Cypress CY7C65113C manual 11.0 I2C Configuration Register, Timer LSB Address, Timer MSB Address

CY7C65113C

Timer LSB								Address 0x24
Bit #	7	6	5	4	3	2	1		0
Bit Name	Timer Bit 7	TimerBit 6	Timer Bit 5	Timer Bit 4	Timer Bit 3	Timer Bit 2	Timer Bit 1		Timer Bit 0
Read/Write	R	R	R	R	R	R	R		R
Reset	0	0	0	0	0	0	0		0
			Figure 10-1. Timer LSB Register
Bit [7:0]: Timer lower eight bits.
Timer MSB								Address 0x25
Bit #	7	6	5	4	3	2	1		0
Bit Name	Reserved	Reserved	Reserved	Reserved	Timer Bit 11	Timer Bit 10	Timer Bit 9		Timer Bit 8
Read/Write	–	–	–	–	R	R	R		R
Reset	0	0	0	0	0	0	0		0

Figure 10-2. Timer MSB Register

Bit [3:0]: Timer higher nibble

Bit [7:4]: Reserved.

1.024-ms interrupt 128-∝s interrupt

11

10 9

8

7

6

5

4

3

2

1

0

1 MHz clock

L3		L2		L1		L0
	D3		D2		D1		D0	D7

D6 D5 D4 D3 D2 D1 D0

8

Figure 10-3. Timer Block Diagram

To Timer Registers

11.0I2C Configuration Register

Internal hardware supports communication with external devices through an I2C-compatible interface. I2C-compatible function is discussed in detail in Section 12.0.[3] The I2C Position bit (Bit 7, Figure 11-1) and I2C Port Width bit (Bit 1, Figure 11-1) select the locations of the SCL (clock) and SDA (data) pins on Port 1 as shown in Table 11-1. These bits are cleared on reset. When the GPIO is configured for I2C function, the internal pull ups on the pins are disabled. Addition of an external weak pull-up resistors on SCL and SDA is recommended.

.

I2C Configuration

Address 0x09

Bit #

7

6

5

4

3

2

1

0

Bit Name

I2C Position

Reserved

Reserved

Reserved

Reserved

Reserved

I2C Port

Reserved

Width

Read/Write

R/W

R/W

R/W

R/W

R/W

R/W

R/W

R/W

Reset

0

0

0

0

0

0

0

0

Figure 11-1. I

2C Configuration Register

Table 11-1.

I2C Port Configuration

I2C Position (Bit7, Figure 11-1)

I2C Port Width (Bit1, Figure 11-1)

I2C Position

0

0

I2C on P1[1:0], 0:SCL, 1:SDA

Note:

3.I2C-compatible function must be separately enabled, as described in Section 12.0.

Document #: 38-08002 Rev. *D Page 20 of 49

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