peb20560 Infineon Technologies Corporation, peb20560 Datasheet - Page 324

• Manufacturer Part Number: peb20560
• Description: Dsp Oriented Pbx Controller Doc
• Manufacturer: Infineon Technologies Corporation

5.1.1.6.13 Receive HDLC-Control Register (RHCR)
Access: read
Reset value: xx
RHCR7…0 Receive HDLC-Control Register.
Note: RR-frames and I-frames with the first byte = AxH (PBCcommand “transmit
Note: The value in RHCR corresponds to the last received frame.
5.1.1.6.14 Transmit Address Byte 1 (XAD1)
Access: write
Reset value: xx
XAD17…10 Transmit Address byte 1.
Semiconductor Group
bit 7
bit 7
RHCR7
XAD17
prepared data”) are handled automatically and are not transferred to the CPU (no
interrupt is issued).
The contents of the RHCR depends on the selected operating mode.
• Auto-mode (1- or 2-byte address field):
• Non-auto mode (1-byte address field): 2nd byte after flag
• Non-auto mode (2-byte address field): 3rd byte after flag
• Transparent mode 1: 3nd byte after flag
• Transparent mode 0: 2nd byte after flag
RHCR6
XAD16
The value stored in XAD1 is included automatically as the address byte
(high address byte in case of 2-byte address field) of all frames transmitted
in auto mode.
Using a 2 byte address field, XAD11 and XAD10 have to be set to '0'.
I-frame
else
H
H
RHCR5
XAD15
compressed control field
(bit 7-4: bit 7-4 of PBC-command,
bit 3-0: bit 3-0 of HDLC-control field)
HDLC-control field
RHCR4
XAD14
5-81
RHCR3
XAD13
RHCR2
XAD12
Description of Registers
RHCR1
XAD11
PEB 20560
bit 0
bit 0
RHCR0
XAD10
2003-08