Rainbow Electronics W90P710CDG - Manual (Page 334)

W90P710CD/W90P710CDG
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BITS DESCRIPTIONS
[31:3] Reserved -
[2:0] UBCR
UBCR is a 3 bits register which is used to select clock source to
generate suitable baud rate:
000: 15Mhz from external crystal
100: 30Mhz divided from PLL 480Mhz
101: 43.6Mhz divided from PLL 480Mhz
110: 48Mhz divided from PLL 480Mhz
111: 60Mhz divided from PLL 480Mhz
6.12.3 UART2
UART2 contains 2 features: general UART and IrDA SIR decoder/encoder. UART has not modem
function. Please read the spec of section 7.12.5 General UART controller function description. The
IrDA SIR is described as follow:
Table 6.12.3.1 UART2 Register Map
Register Address R/W Other condition Reset value
UART2_RBR 0xFFF8_0200 R DLAB=0 Undefined
UART2_THR 0xFFF8_0200 W DLAB=0 Undefined
UART2_IER 0xFFF8_0204 R/W DLAB=0 0x0000_0000
UART2_DLL 0xFFF8_0200 R/W DLAB=1 0x0000_0000
UART2_DLM 0xFFF8_0204 R/W DLAB=1 0x0000_0000
UART2_IIR 0xFFF8_0208 R 0x8181_8181
UART2_FCR 0xFFF8_0208 W Undefined
UART2_LCR 0xFFF8_020c R/W 0x0000_0000
Reserved 0xFFF8_0210 Undefined
UART2_LSR 0xFFF8_0214 R 0x6060_6060
Reserved 0xFFF8_0218 Undefined
UART2_TOR 0xFFF8_021c R/W 0x0000_0000
UART2_IRCR 0xFFF8_0220 R/W 0x0000_0040
UART2 IrDA Control Register (UART2_IRCR)
REGISTER ADDRESS R/W DESCRIPTION RESET VALUE
UART2_IRCR 0xFFF8_0220 R/W UART 2 IrDA Control Register 0x0000_0040