Cypress CY4672 manual Application Report

Keyboard

4.3.9.1.2Multimedia Keys (Hot keys) Report

An Application Report Header of 0xFF indicates that this report is a Multimedia Keys report. The Multimedia Keys report format is shown in Table 4-10.

Table 4-10. Multimedia Keys Report Format

Byte	Name
2	Application Report Header
	0xFF
3	Hot Key Scan Code
	(upper 8 bits)
4	Hot Key Scan Code
	(lower 8 bits)

Example

The following reports is sent if a user presses the ‘Volume Increase’ (Hot Key 8) key on the key- board.

The ‘Volume Increase’ down key packet sent from the keyboard to the bridge is shown in Table 4-11.

Table 4-11. Example ‘Volume Increase’ Down Key Multimedia Keys Report

Application Report

Application Report	Hot Key Scan Code	Hot Key Scan Code
Header	(upper 8 bits)	(lower 8 bits)
0xFF	0x00	0xE9

The up key packet sent from the keyboard to the bridge is shown in Table 4-12.

Table 4-12. Example Up Key Multimedia Keys Report

Application Report

Application Report Header

0xFF

4.3.9.1.3Power Keys (Suspend/Sleep) Report

An Application Report Header of 0xFE indicates that this report is a Power Keys report. The Power Keys report format is shown in Table 4-13.

Table 4-13. Power Keys Report Format

Byte	Name
2	Application Report Header
	(0xFE)
3	Power Key Scan Code

68 CY4672 Reference Design Guide, Document # 001-16968 Revision **

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