1 files changed, 10 insertions, 10 deletions
diff --git a/zeta.h b/zeta.h
index b5f08f9..02edbce 100644
--- a/zeta.h
+++ b/zeta.h
@@ -5,16 +5,8 @@
  * zeta hardware definitions
  */
 
-#define CPU_FREQ 1843200 // 1.8432 MHz
-
-#define EXT_CE_0 0x80
-#define EXT_CE_1 0x90
-#define EXT_CE_2 0xA0
-#define EXT_CE_3 0xB0
-#define EXT_CE_4 0xC0
-#define EXT_CE_5 0xD0
-#define EXT_CE_6 0xE0
-#define EXT_CE_7 0xF0
+/*  7372800UL 1.8432 MHz */
+#define CPU_FREQ 7372800UL
 
 // ********************************************************
 
@@ -131,6 +123,12 @@
 #define RTC_RAM_ADDRESS    0x70
 #define RTC_RAM_DATA       0x73
 
+// ********************************************************
+
+#define MMU_A    0x80
+#define MMU_B    0x81
+#define MMU_SREG 0x82
+
 //
 #ifndef ASSEMBLY
 
@@ -144,6 +142,8 @@ __sfr __at SIO_B_DATA sio_b_data;
 __sfr __at SIO_A_CTRL sio_a_ctrl;
 __sfr __at SIO_B_CTRL sio_b_ctrl;
 
+__sfr __at DMA_CTRL dma_ctrl;
+
 #define IM(__mode) __asm__("im " #__mode)
 #define EI __asm__("ei")
 #define DI __asm__("di")